Nothing matches all of those filters.
pH meters and probe care
Pens, sticks, test kits and storage fluid
Bluelab pH Pen – Waterproof 0-14 pH Meter
- pH range 0.0 to 14.0
- pH accuracy +/-0.1 at 25C
- Resolution 0.1 pH
- Temperature range 0 to 50C (32 to 122F)
- Temperature compensation automatic
- Calibration two-point, pH 7.0 then 4.0 or 10.0, 30-day reminder
- Display backlit LCD, selectable C or F
- Water resistance fully waterproof, floats in solution
- Power 1x AAA alkaline battery
- Warranty 1 year
- Measures pH and temperature
- Temperature accuracy ±1°C at 25°C
- Temperature resolution 1°C
- Auto power-off After 4 minutes
- Battery life 350 hours
- Minimum solution strength 0.2 EC and above
- Units pH, °C and °F
pH Test Kit – Drop Test Reagent for Nutrient Solution
- Brand Hydro Crop Shop
- Type Meters
- Price from £4.95
- Availability In stock
AC Infinity pH & Nutrient Meters – IP67 with Calibration
- Measures pH, temperature
- Accuracy ±0.1
- Probe Fixed
- Solutions pH 4.00, 7.00
Grow Gadgets Hobby pH Pen – 0.1 Accuracy pH Meter
- Accuracy 0.1 pH
- Measures pH of nutrient solution
- Type handheld dip probe, pen format
- Use with soil, coco and hydroponic reservoirs
Bluelab Leap pH Probe – Replacement Soil pH Probe
- Brand Bluelab
- Also sold as Bluelab Soil pH Probe (PROBPHLEAP)
- Type double-junction pH probe with reinforced spear tip
- Use in soil, coco coir blends, rockwool, potting mixes a...
- Connector standard BNC, covered to prevent corrosion
- Cable 2 m (6.6 ft)
- Construction waterproof, KCl-filled storage cap
- Calibration two-point via the meter
- Replacement for Bluelab Multimedia pH Meter (Soil pH Meter) and C...
- Also compatible with any Bluelab meter, monitor or controller with a B...
- pH range 0.0–14.0 pH
- Operating environment 0.2 EC and above, 0–80°C
- Warranty 6 months
VIVOSUN AeroLab P30 pH Pen – pH Tester for Hydroponics
- Model VSE-ALP30
- pH range 0.00–14.00
- Accuracy ±0.01 pH
- Temperature range 0–50°C (32–122°F), with ATC
- Calibration 1, 2 or 3 point automatic, NIST and USA buffers
- Probe replaceable double-junction pH electrode
- Protection IP67, floats
- Display backlit LCD, auto and manual hold
- Power 4 × AAA batteries (included)
- Size and weight approx. 19cm long, 118g
- In the box pH pen, calibration buffer sachets, measuring cup...
- Dimensions 4.2 x 4.2 x 19.1 cm (L x W x H)
- Weight 0.12 kg
Aqua Master Tools S300 Pro2 Substrate pH/Temp Meter
- Measures pH and temperature, direct substrate insertion
- Electrode replaceable, BNC connector
- Waterproof yes
- Best suited to coco, rockwool, soil
- Measures Substrate pH and temperature
- pH range 0.0 to 14.0 pH
- Temperature range 0 to 50°C
- pH accuracy ±0.1 pH
- pH resolution 0.1 pH
- Temperature accuracy ±0.5°C
- Temperature resolution 0.1°C
- Calibration pH, 2 point automatic at 4.0 and 7.0
- Waterproof rating IP65 meter, IP67 electrode
- Auto power-off After 8 minutes
- Power 3 x 1.5 V AG-13 button cells, included
- Probe pH electrode on a 90 cm cord
- Auto temperature compensation 0 to 50°C
- Dimensions 220 x 40 x 40 mm
- Weight 158 g
Growth Technology pH Probe Refill & Storage Solution
- Brand Growth Technology
- Type Meters
- Price from £4.99
- Availability In stock
TrolMaster Aqua-X Reservoir pH Sensor (PPH-1) – pH Probe
- Function Reservoir pH monitoring probe
- Compatible systems Aqua-X (NFS-1) via AMP-2; Aqua-X Pro/Plus, Tent-X...
- Connection BNC plug into an AMP-2 or AMP-3 sensor board
- Cable length 3.6 m
- Monitoring Real-time readings and data logging through Aqua-...
- pH range 0–14
- Accuracy ±0.2 pH
- Calibration pH 7.0 and 4.0 solutions, set on the controller
- Storage keep wet in its cap with probe storage solution
- Operating environment 0–50°C, <90% RH
- Warranty 1 year (TrolMaster sensor probes)
TrolMaster Aqua-X Inline pH Sensor (PPH-2) – For Hydroponics
- Connection type BNC terminal
- Cable length 3.6m
- Installation Inline pipe installation or reservoir monitoring
- Compatible systems TrolMaster Aqua-X with AMP-2 sensor board
- Application Hydroponics, irrigation and water monitoring systems
TrolMaster PPH-3 pH Sensor – Heavy-Duty Inline pH Probe
- Model PPH-3 heavy-duty inline nutrient pH sensor
- Range pH 0–14
- Accuracy ±0.2 pH
- Cable 3.6 m
- Connector BNC male
- Fitting threaded body for a standard ¾" PVC tee; inl...
- Sensor boards AMP-2 (Aqua-X NFS-1); AMP-3 (Aqua-X NFS-2, NFS-3,...
- Working environment 0–50°C, below 90% humidity
- Package 275 × 85 × 95 mm
PHOTOBIO Advanced Quantum PAR Meter – PPFD Meter for Plants
- Brand PHOTOBIO (Phantom)
- Spectral range 400–700 nm ±10 nm
- Memory up to 99 readings
- Sensor remote quantum sensor with white diffuser
- Cables 1.5 m coiled and 3.65 m straight
- Compatible light sources LED, HPS, MH and CMH
- Power 2 × AAA batteries (included)
- In the case main unit, remote sensor, two connection cables, ...
- Remote sensor 8 x 4.6 x 2.6 cm, ¼ in mount
- Operating temperature 0°C to 50°C
- Weight 115 g, no batteries or cable
- Model LGBQM2
- Warranty 1 year
- Dimensions 11.5 x 6 x 2.4 cm
Bluelab pH ProbePlus – Replacement Probe for pH PenPlus
- Fits Bluelab pH PenPlus only (not the standard pH Pen ...
- Measures pH and temperature
- pH range 0.0–14.0
- Accuracy ±0.1 pH
- Probe type double-junction pH probe with temperature sensor
- Operating environment solutions of 0.2 EC and above, 0–60 °C
- Fitting by hand, no tools
- In the box pH ProbePlus with KCl-filled storage cap, pH 7.0 ...
- Warranty 6 months
- Bluelab part code PROBPLUSPH
Digital pH Meter – For Hydroponics & Water
- Type Digital pH pen
- Range 0.0 – 14.0 pH
- Display LCD
- Controls ON/OFF, CAL
- Supplied with buffer powder sachets (pH 4.00, 6.86, 9.18), stor...
Bluelab pH PenPlus – pH Meter with Replaceable Probe
- Measures pH and temperature
- pH range 0.0-14.0, resolution 0.1, accuracy ±0.1 at 25°C
- Temperature range 0-50°C (32-122°F), resolution 1, accuracy ±1°C / ...
- Probe replaceable double-junction pH/temperature probe ...
- Calibration two-point, pH 7.0 then 4.0 or 10.0, 30-day reminder
- Operating environment solutions of 0.2 EC and above, 0-50°C
- Rating IP68 dustproof and waterproof
- Power 1x AAA alkaline battery, auto-off
- In the box pH PenPlus with probe, pH 7.0 and pH 4.0 calibrat...
- Warranty 2 years (6 months on the probe)
- Temperature compensation automatic
- Battery life about 350 hours
- Features hold reading, backlit display, auto-off
Grow Gadgets pH-Pro Meter – For Soil and Water Testing
- Type digital pH pen
- Use soil or nutrient solution
- Display digital LCD
- Power battery operated, with off button
- Includes protective probe cap
Bluelab Multimedia pH Meter – Soil & Media pH Tester
- Measures pH only
- pH range 0.0-14.0, resolution 0.1, accuracy +/-0.1
- Probe Bluelab Leap pH probe, toughened spear tip, 2m cable
- Suitable media nutrient solution, soil, coco coir, rockwool, pot...
- Power 2 x AAA batteries
- Warranty 5-year meter, 6-month Leap probe
- Calibration two-point, pH 7.0 then 4.0 or 10.0, 30-day reminder
- Display backlit LCD
- Operating environment 0–50°C
- Waterproof rating not waterproof, withstands occasional splashes
- In the box meter, Leap (Soil) pH probe, dibber, pH 7.0 and p...
Aqua Master Tools P700 Pro 2 Replacement pH Electrode
- Compatible with Aqua Master Tools P700 Pro 2 Combo Meter
- Measures pH
- Waterproof rating IP67
- Type replaceable pH electrode, supplied on its own
- Connector BNC
- Junction double junction
- pH range (on the P700 Pro 2) 0.0–14.0 pH, ±0.1 pH
- Calibration 2-point automatic, pH 4.0 and 7.0
- Also fits H600 Pro, H600 Pro Substrate, S300 Pro 2
- Storage in KCl storage solution
- Part number AMT1021.2
- Electrode warranty 6 months
Aqua Master Tools S300 Pro2 Replacement pH Electrode
- Compatible with Aqua Master Tools S300 Pro2 Substrate pH/Temp meter
- Connector BNC
- Waterproof rating IP67
- Measures pH (substrate, direct insertion)
- Construction glass tip, plastic body
- Cable 120 cm
- pH range (on the S300 Pro2) 0.00–14.00 pH, ±0.1 pH
- Also fits H600 Pro, H600 Pro Substrate, P700 Pro 2
- Storage in KCl storage solution
- Part number AMT1031
- Electrode warranty 6 months
Milwaukee pH51 Waterproof pH Meter – For Nutrient Solutions
- Type Handheld digital pH meter
- Range 0.0 to 14.0 pH
- Accuracy ±0.1 pH
- Calibration Manual, 1 or 2 point, via trimmers
- Protection Rating IP65 waterproof
- Battery 4 x button cell, included
- Battery Life Over 1500 hours of continuous use
- Electrode Replaceable double junction, MA73600
- Measures pH only
- pH range 0.0 to 14.0 pH
- pH accuracy ±0.1 pH at 25°C
- pH resolution 0.1 pH
- Calibration buffers pH 4.01, 7.01 and 10.01
- Waterproof rating IP65
- Display Large digital LCD
- Power 3 x 1.5 V alkaline, LR44 / A76, included
- Conditioning before first use Soak 2 hours in MA9015 storage solution
- Dimensions 165 x 30 x 30 mm
- Operating environment 0 to 50°C, up to 100 %RH
- Warranty 2 years, 6 months on the electrode
Essentials pH Meter – Hydroponic Nutrient Solution Tester
- Range 0.0 to 14.0 pH
- Resolution 0.1 pH
- Accuracy +/- 0.2 pH
- Battery 4 x 1.5 V button cell
- Battery Life Approximately 150 hours continuous
- Auto Shut-off Approximately 15 minutes
- Product Life At least 365 tests
- Operating Temperature 0 °C to 50 °C
- Memory 10 readings
- Dimensions 170 x 32 x 15 mm
- Weight Approximately 70 g
Growth Technology pH Probe Cleaner – Reconditioning Solution
- Brand Growth Technology
- Type Meters
- Price from £4.99
- Availability In stock
EC and nutrient strength
Truncheons, pens and combo meters
Bluelab Nutrient Truncheon – EC, CF & PPM Meter
- EC range 0.2 to 3.6
- CF range 2 to 36
- PPM (500 scale) 100 to 1800
- PPM (700 scale) 140 to 2520
- Accuracy +/-0.1 EC at 25C
- Calibration none required - factory calibrated
- Operating temperature 0 to 50C (32 to 122F)
- Readout automatic liquid detection with LED display
- Build fully waterproof, long-format probe
- Power 3x AA alkaline batteries
- Warranty 5 years
- Measures Nutrient conductivity in EC, CF and ppm
- CF accuracy ±1 CF at 25°C
- CF resolution 1 CF
- EC resolution 0.1 EC
- ppm 500 accuracy ±50 ppm at 25°C
- ppm 500 resolution 50 ppm
- ppm 700 accuracy ±70 ppm at 25°C
- ppm 700 resolution 70 ppm
- Display Blueglow light display
- Battery type 3 x AA standard or alkaline
- Auto on and off Automatic on liquid detection
- Temperature compensation Automatic
Aqua Master Tools P110 Pro 2 Combo Pen – pH & EC Meter
- Measures pH, EC and temperature
- Range pH 0.1–14.00; EC 0.0–19.99 mS/cm; temperature 0–50°C
- Resolution pH 0.01 or 0.1; EC 0.01 or 0.1 mS/cm; temperature...
- Accuracy pH ±0.1; EC ±2% F.S.; temperature ±0.5°C
- Temperature compensation automatic, 0–50°C
- Calibration pH 2-point automatic at 4.0 and 7.0; EC manual, w...
- Calibration indicator clears after a successful calibration and returns...
- Electrode replaceable, dry storage
- Power 2 x 1.5V AAA batteries (included); battery indica...
- Waterproofing IP67, floats
- Weight 132 g
- Warranty 1 year on the meter, 6 months on the electrode
- Dimensions 23 x 4.3 x 4.3 cm
Aqua Master Tools E300 Pro Substrate EC/Temp Meter
- Measures EC and temperature, direct substrate insertion
- Electrode replaceable
- Waterproof yes
- Best suited to coco, rockwool, soil
- Measures Substrate EC and temperature
- EC range 0.0 to 19.9 mS/cm
- Temperature range 0 to 50°C
- EC accuracy ±2% of full scale, 0.0 to 4 mS/cm
- EC resolution 0.1 mS/cm
- Temperature accuracy ±0.5°C
- Temperature resolution 0.1°C
- Calibration EC, 1 point automatic at 1.4 EC
- Waterproof rating IP65 meter, IP67 electrode
- Auto power-off After 8 minutes
- Power 3 x 1.5 V AG-13 button cells, included
- Probe EC electrode on a 90 cm cord
- Auto temperature compensation 0 to 50°C
- Dimensions 220 x 40 x 40 mm
- Weight 171 g
Aqua Master Tools E50 Pro Replacement EC Electrode
- Compatible with Aqua Master Tools E50 Pro EC & Temperature meter
- Waterproof rating IP67 when fitted to the meter
- Measures EC and temperature
- Part number AMT1006
- Electrode warranty 6 months
TrolMaster ECS-6 Extension Cable – 16ft 4-Pin Waterproof
- Type 4-pin sensor extension cable
- Length 16 ft (approx. 4.9m)
- Connectors Male-to-female, waterproof
- Compatibility Compatible TrolMaster sensors and control modules
TrolMaster ECS-4 Extension Cable – 16ft for Aqua-X AMP-2
- Length 16 ft (approx. 4.9m)
- Connector male-to-female, RJ12 compatible
- Compatibility TrolMaster Aqua-X controller and AMP-2 sensor board
TrolMaster Aqua-X Reservoir EC/Temp Sensor (PCT-1)
- Measures nutrient EC and reservoir water temperature
- Compatible systems Aqua-X (NFS-1) via AMP-2; Aqua-X Pro/Plus, Tent-X...
- Connection Mini DIN plug into an AMP-2 or AMP-3 sensor board
- Monitoring Aqua-X controller and TM+ mobile app, with data l...
- Cable length 3.6 m
- Installation submersible reservoir probe
- EC range 0–5 mS/cm
- Accuracy ±(0.05 + 2%) mS/cm
- Operating environment 0–50°C, <90% RH
- Warranty 1 year (TrolMaster sensor probes)
TrolMaster Aqua-X Sensor Board (AMP-2) – pH, EC, Temp
- Type pH/EC sensor board for the Aqua-X (NFS-1) only
- Compatible probes PCT-1, PCT-2, PPH-1, PPH-2
- Measured parameters pH, EC and temperature
- Data output Aqua-X controller display and TM+ mobile app
- Alarms user-set minimum and maximum thresholds
- Connections BNC (pH probe), Mini DIN (EC/temp probe), Mini DI...
- Includes sensor board, 2.5 m signal cable
- Mounting DIN-type bracket
- Operating environment 0–50°C, ≤90% RH
- Warranty 3 years (TrolMaster)
- Dimensions 9.3 x 8.5 x 3.8 cm
TrolMaster WCS-9 Substrate Sensor Set – VWC, EC & Temp
- Model WCS-9 substrate sensor set (WCS-9 display + WN-9 ...
- Measures volumetric water content, substrate EC, root-zone...
- Water content range 0–100%
- EC range 0–30 mS/cm
- Temperature range 0–50°C (32–122°F)
- Nodes per display up to 4 WN-9
- Probe stainless steel spikes with built-in temperature ...
- Power 12V, 0.1A (from the controller)
- Compatible controllers NFS-1, NFS-2, NFS-3, HCS-2, TCS-1, GCS-1
- Substrates soil and high-EC soilless media such as coco and ...
- Operating environment 0–50°C, up to 90% RH
- Reading interval every 1 min; every 10 s during Feed on Demand
- Calibration single 100% point; factory set for rockwool
- Displays per controller up to 50 (NFS-2, HCS-2), 20 (NFS-3), 1 (NFS-1, TC...
- Dimensions display 8.2 x 5.4 x 2.1 cm; node 6.3 x 6.3 x 8.2 cm
TrolMaster Aqua-X Inline EC/Temp Sensor (PCT-2) – EC Probe
- Sensor type EC and water temperature probe
- Installation Inline pipe installation or reservoir placement
- Connection Mini DIN plug into an AMP-2 or AMP-3 sensor board
- Compatible systems Aqua-X (NFS-1) via AMP-2; Aqua-X Pro/Plus, Tent-X...
- App support TM+ mobile app
- Application Hydroponic systems, irrigation monitoring, nutrie...
- EC range 0–5 mS/cm
- Accuracy ±(0.05 + 2%) mS/cm
- Cable length 3.6 m
- Operating environment 0–50°C, <90% RH
- Warranty 1 year (TrolMaster sensor probes)
TrolMaster PCT-3 EC/Temp Sensor – Heavy-Duty Inline EC Probe
- Model PCT-3 heavy-duty inline nutrient EC/temp sensor
- Measures EC and solution temperature
- EC range 0–5 mS/cm
- EC accuracy ±(0.05 + 2%) mS/cm
- Cable 3.6 m
- Connector mini-DIN male
- Fitting threaded body for a standard ¾" PVC tee; inl...
- Sensor boards AMP-2 (Aqua-X NFS-1); AMP-3 (Aqua-X NFS-2, NFS-3,...
- Working environment 0–50°C, below 90% humidity
- Package 275 × 85 × 95 mm
Aqua Master Tools P700 Pro 2 Replacement EC Electrode
- Compatible with Aqua Master Tools P700 Pro 2 Combo Meter
- Measures EC, CF, PPM and temperature
- Connector large PIN
- Waterproofing IP67
- EC range and accuracy (on the P700 Pro 2) 0.0–19.9 mS/cm, ±2% F.S.
- Calibration 1-point automatic at 1.4, 3.0 or 12.88 EC
- Type replaceable EC electrode, supplied on its own
- Part number AMT1022.2
- Electrode warranty 6 months
Bluelab OnePen Replacement Probe – pH, EC & Temp Sensor
- Fits Bluelab OnePen only
- Sensors double-junction pH probe, titanium conductivity e...
- pH 0.0–14.0, resolution 0.01, accuracy ±0.05 at 25 °C
- Conductivity 0–10.0 EC or mS/cm (resolution 0.01, accuracy ±0....
- Temperature 0–50 °C / 32–122 °F, accuracy ±1
- Calibration pH two-point (7.0 and 4.0, or 7.0 and 10.0); EC f...
- Rating IP68 water and dust ingress
- Average life about 18 months with correct care (Bluelab)
- Warranty 6 months
- Bluelab part code PROBONE
Out of stock
VIVOSUN pH and TDS Meter Combo – Hydroponic Water Test Kit
- pH range 0.00–14.00, ±0.1 pH
- TDS range 0–9999 ppm, 1 ppm resolution, ±5%
- EC range 0–9999 µS/cm, 1 µS/cm resolution, ±5%
- Temperature 0.1–80°C (32–176°F), 0.1° resolution
- Compensation ATC on both pens
- TDS pen power 1 × 3V CR2032 button cell
- In the box pH pen, TDS/EC/temperature pen, pH buffer powders
Milwaukee EC40 Nutrient Truncheon – EC Meter for Hydroponics
- Model Milwaukee EC40 EC/TDS Nutrient Meter
- Range 0.2 to 4.0 mS/cm | 2 to 40 CF | 100 to 2000 ppm (...
- Resolution 0.1 mS/cm (70 ppm on the 700 scale, 50 ppm on the...
- Accuracy ±4% of reading ±1 resolution point
- Calibration factory calibrated
- Temperature compensation automatic, 5 to 50 °C
- Display 20 blue LED bar
- Probe graphite EC sensor with built-in temperature sensor
- Protection IP67 waterproof, floating
- Power 3 x 1.5V AA alkaline (included); auto on/off; bat...
- Dimensions 420mm long x 30mm diameter; 255g with batteries
- Supplied with wrist strap
Milwaukee C66 Conductivity Pen – EC Tester for Hydroponics
- Model Milwaukee C66 Waterproof High Range Conductivity Pen
- Range 0.00 to 10.00 mS/cm
- Resolution 0.01 mS/cm
- Accuracy ±2% full scale
- Temperature compensation automatic, 5 to 50 °C (β = 2%/°C)
- Calibration manual, one point via trimmer (1413 µS/cm)
- Electrode MA73076, replaceable
- Protection IP65 waterproof
- Power 3 x 1.5V LR44 batteries (included), approx. 250 h...
- Dimensions approx. 165 x 30 x 30mm; approx. 100g
Essentials EC Meter – Nutrient Meter for Hydroponics
- Range 0.1 – 10.0 mS
- Resolution 0.1 mS
- Accuracy ±2% full scale
- Temperature compensation automatic, 0°C – 70°C
- Operating temperature 0°C – 50°C
- Memory 10 readings
- Battery 4 x 1.5V button cells, approx. 100 hours
- Auto shut-off approx. 15 minutes
- Dimensions 170 x 32 x 15mm
- Weight approx. 70g
Bluelab Commercial Truncheon Nutrient Meter – High Range EC
- EC 0.4-6.0, resolution 0.1, accuracy ±0.1 at 25°C
- CF 4-60, resolution 1, accuracy ±1
- ppm 500 (TDS) 200-3000, resolution 50, accuracy ±50
- ppm 700 280-4200, resolution 70, accuracy ±70
- Calibration none required - factory calibrated, automatic tem...
- Operating temperature 0-50°C (32-122°F)
- Display LED scale, automatic on when liquid is detected
- Build fully waterproof, long-format probe
- Power 3x AA alkaline batteries
- Warranty 5 years
- Minimum solution strength 0.4 EC
Milwaukee Smart Combi Meter – pH & EC Meter Hydroponics
- pH meter range 0.0-14.0 pH
- EC meter range 0.0-10.0 mS/cm
Bluelab ORP Probe – Replacement ORP Sensor, 2m Cable
- Sensor platinum spiral electrode, ceramic double-junctio...
- Connector standard BNC
- Cable length 2 metres
- Body waterproof polycarbonate, 12mm x 122mm shaft
- Range ±2000 mV
- Operating environment 0.2 EC and above, -5°C to 80°C
- Includes KCl-filled storage cap
- Compatible with any meter or controller with a BNC ORP input, inc...
Bluelab OnePen – pH, EC & Temp Meter, Bluetooth
- Measures pH, conductivity (EC) and temperature simultaneously
- pH range 0.0-14.0, resolution 0.01, accuracy ±0.05 at 25°C
- Temperature range 0-50°C (32-122°F), resolution 0.1, accuracy ±1°C
- Conductivity range EC/mS 0-10 (res 0.01, acc ±0.1) · CF 0-100 (res 0...
- Probe replaceable double-junction pH probe with titaniu...
- Connectivity Bluetooth to the Edenic app for live data, loggin...
- Water resistance IP68 — dust-tight and waterproof
- Power 2x AAA alkaline battery
- Warranty 2-year meter warranty, 6-month replacement probe ...
- Box contents OnePen with probe, sensor cleaning brush, pH 7.0 ...
- Calibration pH two-point, 7.0 then 4.0 or 10.0; EC factory ca...
- Temperature compensation automatic
- Bluetooth Bluetooth 5 (Low Energy), 10 m range
- App Edenic, Android 8.0+ or iOS 12+
Bluelab ORP Meter – Handheld Water Quality Tester
- Measures ORP in mV; pH with an optional pH probe
- ORP range ±1000 mV
- pH range 0.0 to 14.0 pH
- Temperature range 0 to 50°C (32 to 122°F)
- ORP accuracy ±5 mV at 25°C
- ORP resolution 1 mV, 10 mV below 0 mV
- pH accuracy ±0.1 pH at 25°C
- pH resolution 0.1 pH
- Calibration reminder 30-day pH calibration indicator
- ORP calibration None required
- pH calibration Two or three point (7.0, 4.0, 10.0)
- Waterproof rating Not waterproof, withstands splashes
- Display Backlit LCD with low-battery indicator
- Power 2 x AAA alkaline batteries
- Probe cable length 2 m (6.6 ft)
- Probe connection Single BNC connector
- Warranty 5 years, 6 months on the ORP probe
Aqua Master Tools P700 Pro 2 Combo Meter – pH, EC, CF, PPM
- pH range 0.0 - 14.0 (±0.1)
- EC range 0.0 - 19.9 mS/cm
- CF range 0.0 - 199
- PPM range 0 - 1999 (700 scale)
- Temperature range 0°C - 50°C
- Calibration pH 2-point auto (4.0-7.0), EC 1-point auto
- Power DC 6V rechargeable
- Dimensions 200 x 140 x 34mm, 418g
- Measures pH, EC, CF, ppm and temperature
- CF range 0.0 to 199 CF
- EC range 0.0 to 19.9 mS/cm
- pH range 0.0 to 14.0 pH
- ppm range 0 to 1999 ppm
- Temperature range 0 to 50°C
- EC accuracy ±2% of full scale
- pH accuracy ±0.1 pH
- ppm accuracy ±2% of full scale
- Resolution pH 0.1, EC 0.1 mS/cm, ppm 10 ppm
- Temperature accuracy ±0.5°C
- EC calibration 1 point automatic at 1.4, 3.0 or 12.88 EC
- pH calibration 2 point automatic at pH 4.0 and 7.0
- Waterproof rating IP65 meter, IP67 electrodes
- Display Large LED screen
- Power 6 V DC rechargeable battery
- Auto temperature compensation 0 to 50°C
- Dimensions 200 x 140 x 34 mm
- ppm scale 700 ppm
- Weight 418 g
Aqua Master Tools H600 Pro Handheld Meter – pH, EC, PPM, TDS
- pH range 0.1 - 14.0
- EC range 0.0 - 19.9 mS/cm
- TDS range 0.0 - 19.99 ppt
- PPM range 0 - 1999
- Temperature range 0°C - 50°C
- Calibration pH 2-point
- Power 9V battery, 8-minute auto shut-off
- Weight 430g
- Measures pH, EC, ppm, TDS and temperature
- EC range 0.0 to 19.9 mS/cm
- pH range 0.1 to 14.0 pH
- ppm range 0 to 1999 ppm
- TDS range 0.0 to 19.99 PPT
- Temperature range 0 to 50°C
- EC accuracy ±2% of full scale
- pH accuracy ±0.1 pH
- Resolution pH 0.1, EC 0.1 mS/cm, ppm 10 ppm
- TDS accuracy ±2% of full scale
- Temperature accuracy ±0.5°C
- Calibration reminder Clears after 30 days
- EC calibration 1 point automatic at EC 1.4 (1413 µS/cm)
- pH calibration 2 point automatic at pH 4.0 and 7.0
- Waterproof rating IP62 meter, IP67 electrodes
- Power 1 x 9 V battery, included
- Auto temperature compensation 0 to 50°C
- Dimensions 210 x 120 x 60 mm
- ppm scale 700 ppm
- Weight 430 g
Aqua Master Tools E300 Pro2 Replacement EC Electrode
- Compatible with Aqua Master Tools E300 Pro2 Substrate EC/Temp meter
- Waterproof rating IP67 (electrode)
- Measures EC (substrate, direct insertion)
- Connector small PIN
- Material stainless steel
- Cable 120 cm
- EC range (on the E300 Pro2) 0.00–19.99 mS/cm
- Also fits H600 Pro, H600 Pro Substrate
- Part number AMT1036
- Electrode warranty 6 months
Grow Gadgets EC Tester – Nutrient Strength Meter
- Brand Grow Gadgets
- Measurement type Electrical Conductivity (EC)
- Display Digital LCD screen
- Operation time Up to 700 hours
- Housing Tough plastic construction
- Included Carry case and calibration screwdriver
- Application Hydroponics, coco and soil growing
Bluelab EC Pen – Waterproof Nutrient Strength Meter
- Measures conductivity (nutrient strength)
- Units EC, ppm 500 and ppm 700
- Temperature compensation automatic
- Calibration factory calibrated, optional user calibration
- Water resistance fully waterproof, floats
- Features hold reading and auto-off
- EC range 0.0 to 10.0 EC
- ppm 500 range 0 to 5,000 ppm 500 (TDS)
- ppm 700 range 0 to 7,000 ppm 700
- Temperature range 0 to 50°C (32 to 122°F)
- EC accuracy ±0.1 EC at 25°C
- EC resolution 0.1 EC
- ppm 500 accuracy ±50 ppm at 25°C
- ppm 700 accuracy ±70 ppm at 25°C
- ppm resolution 10 ppm
- Temperature accuracy ±1°C at 25°C
- Temperature resolution 1°C
- Display Backlit LCD
- Auto power-off After 4 minutes
- Battery life 350 hours
- Power 1 x AAA alkaline battery
- Warranty 1 year
Grow Gadgets Hobby EC Pen – Nutrient Strength Meter
- Measures electrical conductivity (EC) of nutrient solution
- Type handheld dip probe, pen format
- Use with hydro reservoirs, soil and coco run-off
Temperature, humidity and moisture
Readings from the air and from the substrate
Bluelab Soil pH Pen – Soil pH & Temperature Meter
- Measures pH and temperature
- pH 0.0–14.0, resolution 0.1, accuracy ±0.1 at 25 °C
- Temperature 0–50 °C / 32–122 °F, resolution 1, accuracy ±1 °C...
- Media soil, coco coir, rockwool, potting mixes and nutr...
- Operating environment 0–50 °C; do not use or store outside this range
- Temperature compensation automatic (ATC)
- Calibration two-point, pH 7.0 and 4.0 (or 7.0 and 10.0), 30-d...
- Display backlit LCD with hold function; auto-off after 4 ...
- Probe double-junction pH probe with integrated storage ...
- Power 1 x AAA alkaline battery, about 350 hours
- In the box Soil pH Pen, KCl-Keep Plug, pH 7.0, pH 4.0 and KC...
- Warranty 1 year
- Bluelab part code PENSOILPH
AC Infinity VPD Thermometer – Tent Climate Meter
- Type Standalone digital thermometer, hygrometer and VP...
- Readouts Temperature, relative humidity, VPD
- Connectivity None required, fully standalone
- Placement Canopy-height, hang or stand
- Measures Air and leaf VPD, temperature and humidity
- Emissivity range 0.1 to 1.00, adjustable
- Infrared surface temperature range -21 to 550°C (-5.8 to 1022°F)
- Humidity calibration ±10 %RH offset, 1% steps
- Leaf temperature calibration ±10°C offset, 1° steps
- Temperature calibration ±10°C offset, 1° steps
- Auto power-off After 20 seconds idle
- Power 2 x AAA batteries
- Default emissivity 0.98
- Distance-to-spot ratio 12
- Laser Class 2 laser positioning
- Memory Last 5 readings, saved automatically
- Model AC-TRV3
- Response time Under 500 ms
- Unit dimensions 151 x 103 x 45 mm
Temperature & Humidity Meter – Hygrometer
- Measures temperature and relative humidity
- Display digital LCD
- Power battery powered
- Mounting free-standing or hanging
- Model HTC-1
- Also shows clock, min/max memory
Bluelab Temperature Probe – Replacement for pH Controllers
- Measures solution temperature
- Compatible with Bluelab pH Controllers and Bluelab Pro Controllers
- Connector 3.5mm jack
- Cable length 2 metres (6.6 ft)
- Body stainless steel, waterproof
- Calibration none required
Aqua Master Tools E50 Pro EC & Temperature Pen Meter
- EC range 0.0 - 19.9 mS/cm
- Temperature range 0°C - 50°C (32°F - 122°F)
- EC resolution 0.1 mS/cm
- Temperature resolution 0.1°C (1.0°F)
- EC accuracy ± 2% F.S.
- Temperature accuracy ± 0.5°C
- Temperature compensation automatic, 0°C - 50°C
- Calibration EC 1-point auto at 1.4 EC
- Calibration indicator yes
- Low battery indicator yes
- Waterproof rating IP67
- Auto power-off after 8 minutes
- Power supply 3 x 1.5V AG-13 button cell (included)
- Electrode replaceable
- Dimensions 220 x 40 x 40 mm
- Weight 102 g
- Measures EC and temperature
- EC range 0.0 to 19.9 mS/cm
- Temperature range 0 to 50°C
- EC accuracy ±2% of full scale
- EC resolution 0.1 mS/cm
- Temperature accuracy ±0.5°C
- Temperature resolution 0.1°C
- Calibration EC, 1 point automatic at 1.4 EC
- Waterproof rating IP67
- Auto power-off After 8 minutes
- Power 3 x 1.5 V AG-13 button cells, included
- Auto temperature compensation 0 to 50°C
- Dimensions 220 x 40 x 40 mm
- Weight 102 g
Aqua Master Tools P50 Pro2 pH & Temperature Pen Meter
- pH range 0.0 - 14.0
- Temperature range 0°C - 50°C
- Calibration 2-point auto, 4.0 - 7.0 pH
- Waterproof rating IP67
- Auto power-off after 8 minutes
- Measures pH and temperature
- pH range 0.0 to 14.0 pH
- Temperature range 0 to 50°C
- pH accuracy ±0.1 pH
- pH resolution 0.1 or 0.01 pH, selectable
- Temperature accuracy ±1.0°C
- Temperature resolution 0.1°C
- Calibration pH, 2 point automatic at 4.0 and 7.0
- Calibration reminder Clears after 30 days
- Waterproof rating IP67
- Display Black display with white characters
- Auto power-off After 8 minutes
- Power 2 x 1.5 V AAA batteries, included
- Auto temperature compensation 0 to 50°C
- Dimensions 230 x 43 x 43 mm
- Weight 132 g
Grow Gadgets Digital Moisture Meter – For Soil and Coco
- Brand Grow Gadgets
- Measurement type Substrate moisture level
- Measurement range 5% to 40% saturation
- Display large digital LCD
- Power 9 volt battery (supplied)
- Included 9 volt battery and protective carry case
- Suitable for Soil, coco and other substrates
- Also used for Testing dried plant materials such as lavender or...
- Model mm-v1
- Functions data hold, low-battery alert
VIVOSUN Wireless Thermometer & Hygrometer Set
- Sensors 1 wireless sensor + display (takes up to 3)
- Readings Temperature and relative humidity
- Display Large LCD screen
- Power Battery operated (display and sensors)
- Use case Grow tents, grow rooms and outdoor reference
- Humidity range 20 to 95 %RH
- Indoor temperature range -20 to 70°C (-4 to 158°F)
- Remote sensor temperature range -40 to 70°C (-40 to 158°F)
- Wireless range 60 m (197 ft)
- Humidity accuracy ±5 %RH
- Temperature accuracy ±1°C (±1.5°F)
- Temperature resolution 0.1°C
- Display power 2 x AAA 1.5 V
- Display readouts Indoor and remote temp, RH, trend, max/min
- Display type Touchscreen LCD
- Sensor power 2 x AAA 1.5 V per sensor
- Backlight Blue backlight, 12 second auto-off
- Mounting Tabletop, hanging or magnet
- Radio frequency 433 MHz
- Temperature units °C or °F selectable, °C by default
- Humidity resolution 1% RH
- Buttons backlight, CH/sync, °C/°F/history, max/min/clear
- Warranty 1 year (VIVOSUN)
Triminator Moisture Meter – For Drying and Curing
- Function measures moisture content in produce
- Application drying and curing process monitoring
- Pairs with Triminator Dry Trimming Machine
- How it measures Conductance between two steel pins
- Measurement range 7 to 35 % moisture, over two scales
- Measures Moisture content of dried plant material
- High scale range 16 to 35 % moisture
- Low scale range 7 to 15 % moisture
- Accuracy ±1 LED
- Calibration Pins into cap holes, reads 20 % ±2 LED
- Display 10-LED bar graph
- Auto power-off None, switch off manually after use
- Battery indicator Bar graph shows charge at power-on
- Low battery alarm Below 7.5 V
- Power One 9 V battery, included
- Current draw Under 15 mA DC
- Dimensions 164 x 69 x 26 mm
- Operating temperature 0 to 60°C, below 80 %RH
- Pin length 10 mm (3/8 in)
- Storage temperature -5 to 60°C
- Weight 91 g
Bluelab Combo Meter – pH, EC & Temperature Tester
- Measures pH, conductivity and temperature
- pH range 0.0-14.0, resolution 0.1, accuracy +/-0.1
- Conductivity range 0.0-9.9 EC / 0-99 CF / ppm 500 (TDS) 0-4950 / ppm...
- Temperature range 0-50C (32-122F)
- Calibration 2-point pH (4.0 and 7.0) with 30-day reminder; co...
- Display backlit LCD
- Power 2 x AAA batteries
- Warranty 5-year meter (pH probe covered separately)
- CF accuracy ±1 CF at 25°C
- Conductivity accuracy ±0.1 EC at 25°C
- Conductivity resolution 0.1 EC
- ppm 500 accuracy ±50 ppm at 25°C
- ppm 700 accuracy ±70 ppm at 25°C
- ppm resolution 10 ppm
- Temperature accuracy ±1°C at 25°C
- Temperature resolution 1°C
- pH calibration points pH 7.0 then pH 4.0 or pH 10.0
- Waterproof rating Not waterproof, withstands splashes
- Temperature compensation Automatic
- Probe cables 2 m
- pH probe replaceable Bluelab pH Probe, BNC connection
- In the box meter with EC/temp probe, pH probe, probe holder,...
AC Infinity Soil Sensor – Moisture Probe for AI+ Controller
- Measures Soil moisture and saturation level
- Accuracy ±5%
- Refresh rate 1 second
- Ingress protection IP67
- Probe Fiberglass detachable stem with protective cap
- Cable length 3.6m (144in)
- Sensor dimensions 3.6 x 7.2 x 1.4cm
- Compatibility AC Infinity Controller AI+ only (model AC-SLS3); ...
TrolMaster MBS-TH 3-in-1 Sensor – Temp, Humidity, Light
- Output voltage 0-11.5V
- Maximum current 0.2A
- Operating temperature 32-122°F (0-50°C)
- Maximum humidity ≤90%
- Connectivity RJ12 (16 ft cable and T-splitter included)
- Dimensions 16 x 8.6 x 8.6cm (160 x 86 x 86mm)
Out of stock
Dimlux Plant Temperature Camera – For Maxi Controller
- Brand Dimlux
- Type infrared plant (leaf) temperature camera
- For use with Dimlux Maxi Controller (not the Xtreme LED, which...
- Cable length 10m
- Controller display PT (plant temperature) and plant-to-room temperat...
- Function lets the Maxi Controller dim or switch off the li...
iBebot SoilQuality Sensor – Bluetooth Soil Moisture & EC
- Measures Soil moisture and soil EC
- Moisture range 0% to 70% volumetric (absolute volume ratio), 0.1...
- EC range 0 to 10 mS/cm, 0.001 mS/cm resolution
- On-board memory Up to 25,000 readings
- Connectivity Bluetooth Low Energy 4.0, 10 m range (free field)
- App iBebot Growers app, iOS and Android
- Battery 1 x AAA alkaline 1.5V, up to 1.5 years at a 20-mi...
- Water resistance IPX5
- Dimensions 22 x 2 x 2 cm
- Weight Approx. 35 g
- Best suited to Soil (see FAQ for coco)
ETI Mini RayTemp Infrared Thermometer – Gun for Grow Rooms
- Type infrared, non-contact
- Range -50°C to +330°C
- Accuracy ±2°C from 0 to 330°C; ±4°C or ±4% below 0°C
- Distance-to-spot ratio 12
- Sighting laser pointer
- Model ETI 814-080
- Resolution 0.1°C
- Emissivity fixed 0.95
- Display backlit LCD, °C/°F switchable
- Auto power-off after 10 seconds
- Battery 1 x 9 V PP3, about 80 hours
- Case ABS
- Guarantee 1 year
- Dimensions 13.1 x 8.8 x 3.6 cm
- Weight 0.1 kg
Marksman Wooden Thermometer – Indoor Grow Thermometer
- Scale -40°C to 50°C / -40°F to 120°F
- Display dual Celsius/Fahrenheit analogue scale
- Mount solid wood back, hanging hole
- Power none required
- Brand Marksman
Bluelab Pulse Multimedia EC/MC Meter – For Soil Moisture
- Measures moisture, conductivity (EC) and temperature
- EC range 0-15, accuracy +/-0.2 (0-5.0) or +/-8% (5.0-15.0)
- Moisture range 5%-70% (mixed media and coir), accuracy +/-5%
- Temperature range 5-40C (40-104F), accuracy +/-1C
- Probe length 200mm / 8 inch stainless steel
- Connectivity Bluetooth 4.0+, iOS 12.1+ and Android 5.1+
- Power 1 x AA battery
- Warranty 1 year
- Not suitable for perlite or rockwool
Bluelab Combo Meter Plus – pH, EC & Temperature Tester
- Measures pH, conductivity and temperature
- pH range 0.0-14.0, resolution 0.1, accuracy +/-0.1
- Conductivity range 0.0-9.9 EC / 0-99 CF / 0-4950 ppm 500 / 0-6930 pp...
- Temperature range 0-50C (32-122F)
- Probe Bluelab Leap pH probe, toughened spear tip, 2m cable
- Power 2 x AAA batteries
- Warranty 5-year meter, 6-month Leap probe
- Conductivity accuracy ±0.1 EC at 25°C
- Conductivity calibration not required, factory calibrated
- pH calibration two-point, pH 7.0 then 4.0 or 10.0, 30-day reminder
- Temperature accuracy ±1°C at 25°C
- Temperature compensation automatic
- Conductivity/temperature probe factory calibrated, 2 m cable
- Display backlit LCD
- Waterproof rating not waterproof, withstands occasional splashes
- In the box meter with EC/temp probe, Leap (Soil) pH probe, d...
Dimlux Digital Plant Temperature Camera – For Xtreme LED
- Type Digital plant (leaf) temperature camera
- Compatibility Dimlux Xtreme LED only - not the older analogue s...
- Supplied with Mounting bracket
- Cable 3 m as standard; 10 metre version also offered
- Mounting On the fixture, angled to match the lighting
- Use Plant temperature-led climate and VPD control
- Sensing infrared, leaf-canopy surface temperature
- Connection fixture OUT2 port, or add-on OUT port
- Status lights fixture blinks blue too cold, red too hot
Continuous monitors and controllers
Log the room, or dose to a set point
Bluelab Guardian Monitor (Wifi Version) – pH EC Temp Alerts
- Probe mounting hang in reservoir
- pH probe Bluelab pH Probe
- pH probe cable 2 m
- pH probe thread –
Bluelab pH Probe – Replacement for Guardian Monitor, 2m
- Type double-junction Ag/AgCl, saturated KCl gel-filled
- pH range 0.0-14.0
- Resolution 0.1 and 0.01 pH
- Operating environment 0-60C (32-140F), solution 0.2 EC and above
- Connector BNC, 2m cable
- Compatibility Guardian Monitor and other BNC-connection Bluelab...
- Warranty 6 months
- Accuracy ±0.1 pH at 25°C
- Body polycarbonate, waterproof
- Shaft Ø 12 x 122 mm
- Electrode length 163 mm (max)
- Storage KCl-filled storage cap
- Includes probe holder with suction cup
AC Infinity Hydro Sensor – pH, EC, TDS for AI+ Controller
- Measures pH, EC, TDS, salinity, water temperature
- Waterproof rating IP68 (fully submersible)
- Cable length 365.8 cm (144 in)
- Sensor body 5.3 x 5.3 cm
- Operating voltage 3.6V
- Probes interchangeable/replaceable
- Included pH 4.00, 7.00, 10.01 and EC 84 uS/cm, 1413 uS/cm,...
- Compatibility AC Infinity Controller AI+ (UIS)
- Model AC-HDS3
AC Infinity CO2 & Light Sensor – For AI+ Controller
- CO2 range 0-40,000 ppm (accuracy 50 ppm +/- 5%)
- Light range 1-65,535 lx (accuracy 1.2 lx)
- CO2 response time approx. 60 seconds
- Light response time 120 ms
- Cable length 365.8 cm (144 in)
- Operating conditions 0-50C, 35-60% RH
- Compatibility AC Infinity Controller AI+ (UIS)
- Model AC-COS3
TrolMaster Hydro-X CO2 Sensor (MBS-S8) – PPM Monitoring
- Measurement CO2 concentration in PPM, with built-in day/night...
- Compatibility TrolMaster Hydro-X controller (pair with DSC-2 fo...
- Output voltage 0 to 11.5V
- Maximum current 0.2A
- Connectivity RJ12, plug and play
- Operating range 0 to 50 degrees C, humidity 90 percent or lower
- Dimensions 16 x 8.6 x 8.6 cm
- Weight 0.37 kg
- Included MBS-S8 sensor, 16 ft RJ12 cable, RJ12 T-splitter
Bluelab Pro Controller Conductivity Probe – Spare EC Probe
- Brand Bluelab
- Part Pro Controller Conductivity Probe (Bluelab PROBPCEC)
- Measures conductivity (EC) of the nutrient solution
- Compatible with Bluelab Pro Controller (CONTPRO) and Pro Controll...
- Not compatible with Bluelab Guardian Monitor or Combo Meter
- Cable 2 m (6.56 ft) standard
- Submersible yes, fully
AC Infinity Climate Sensor – For Controller 69 PRO & PRO+
- Measures temperature, relative humidity, VPD
- Cable length 6 m (20 ft) corded probe
- Power supplied via controller port, no separate PSU
- Compatibility AC Infinity Controller 69 PRO, 69 PRO+ and UIS de...
AC Infinity Water Sensor – Leak Detection for AI+ Controller
- Function Liquid presence / leak detection
- Ingress protection IP68, submersible to 3 m
- Mounting Suction cup and magnetic
- Compatibility AC Infinity Controller AI+ only (model AC-WDS3)
- Response Controller alert and/or automated device trigger
- Cable length 3.7 m
- Dimensions 5.3 x 5.3 cm
AC Infinity Climate Sensor – VPD & RH for AI+ Controller
- Measures temperature, relative humidity, VPD
- Connection 3.5 mm plug on a 7.3 m integrated cord
- Power supplied via controller, no separate PSU
- Compatibility AC Infinity AI+ Environmental Controller and UIS ...
- Model AC-SPC24
- Cable length 7.3 m (24 ft)
- Probe Swiss-made thermal-alloy head, SAE 316 steel
- Water resistance IP44
TrolMaster Sensor Board (AMP-3) – pH, EC, Temp Monitoring
- Function Sensor board linking pH, EC and temperature probe...
- Compatibility Aqua-X Pro (NFS-2), Aqua-X Plus (NFS-3), Tent-X (...
- Display 1-inch on-board LCD plus main controller readout
- Connectivity RJ12, plug and play, with multi-board addressing
- Included AMP-3 board, 16 ft RJ12 cable, 4 ft RJ12 cable, R...
- Compatible probes PPH-1/2/3 pH and PCT-1/2/3 EC/temp
- Ports RJ12 system, BNC pH, Mini DIN EC/temp
- Boards per controller up to 50 (Aqua-X Pro)
- Operating environment 0–50°C, ≤90% RH
- Warranty 3 years (TrolMaster)
- Dimensions 9.3 x 7.6 x 3.9 cm
iBebot AirComfort+ Bluetooth Hygrometer – Grow Room Monitor
- Measures Air temperature and relative humidity
- Temperature range -25°C to 45°C, accuracy ±0.5°C at 25°C
- Humidity range 0% to 100% RH, accuracy ±4.5% at 70% RH
- Logging interval Adjustable, 5 to 40 minutes
- On-board memory 4,032 readings (up to 100 days)
- Connectivity Bluetooth Low Energy 4.0, 10 m range (free field)
- App iBebot Growers app, iOS and Android; graphs, aler...
- Battery 1 x CR2450 button cell (included), about 12 months
- Dimensions 35.8 mm diameter x 115.2 mm high
- Weight Approx. 35 g
- Use Indoor only - not waterproof
- In the box AirComfort+ sensor, CR2450 battery, carabiner, in...
iBebot AirComfort Wireless Full Kit – WiFi Grow Room Monitor
- AirComfort+ temperature -25°C to 45°C, ±0.5°C at 25°C
- AirComfort+ humidity 0-100% RH, ±4.5% at 70% RH
- AirComfort+ memory and battery 4,032 readings; 1 x CR2450, about 12 months
- SoilQuality moisture 0-70% volumetric, 0.1% resolution (capacitive)
- SoilQuality EC 0-10 mS/cm, 0.001 mS/cm resolution
- SoilQuality memory and battery Up to 25,000 readings; 1 x AAA, up to 1.5 years; ...
- Hub connectivity Wi-Fi 802.11 b/g/n 2.4 GHz plus long-range Bluetooth
- Hub socket UK, 16A resistive load (20A maximum switching cur...
- Hub dimensions 110 x 62 x 72 mm, approx. 145 g
- Sensor range to Hub Within 10 m
- Apps iBebot Growers app, Hub app and Dashboard+ web pl...
Aqua Master Tools C800 Pro Controller – pH & EC Dosing
- Measures pH, EC, PPM/TDS and temperature
- Range pH 0.00–14.00; EC 0.00–20.00 mS/cm; PPM 0–14,000 ...
- Resolution pH 0.01 or 0.1; EC 0.01 or 0.1 mS/cm; temperature...
- Accuracy pH ±0.1; EC and PPM ±2% F.S.; temperature ±1.0°C
- Calibration pH 1, 2 or 3 point at 4.0, 7.0 and 10.0; EC 1 poi...
- Temperature compensation automatic, 0–50°C
- Dosing on-time 1–900 seconds; off-time 0–60 minutes
- Outputs left UTP port for 1 pH pump (up or down); right U...
- Alarms high and low pH, EC and temperature; dosing stops...
- Data history graphs up to 1 year; app for Android 8.0+...
- Waterproofing controller IP63; electrodes IP67
- Power AC 85–260V, 50/60Hz, UK plug adapter
- Dimensions and weight 94 x 210 x 55 mm; 656 g
- Supplied with C800 Pro controller, pH electrode, EC/temperature...
- Warranty 1 year on the controller, 6 months on the electrodes
Essentials CO2 Monitor – For Grow Tents & Grow Rooms
- Sensor NDIR (Non-Dispersive Infrared) CO2
- Displays CO2 (ppm), temperature, relative humidity, clock,...
- Backlight green / amber / red CO2 indication, seven selecta...
- Alarm programmable audible alarm at a user-set CO2 level
- Power USB, mains adaptor supplied (or PC / USB power bank)
Grow Tools CO2 Monitor – Digital CO2 Monitoring Device
- Measures CO2 concentration, temperature and relative humidity
- Refresh rate 1 second
- Display colour LCD with CO2 ring indicator
- Power rechargeable internal battery
Bluelab pH Controller – Automatic Dosing for Reservoirs
- Control range 0.1-13.9 pH, resolution 0.1
- Dose rate 10ml per minute
- Reservoir capacity up to 760 litres
- Dimensions 20 x 11 x 21cm
- Power 100-240VAC, 50/60Hz, 0.4A output
- Operating environment 0-50C
- Includes pH probe, temperature probe, peristaltic pump, 4m...
- Languages English, Deutsch, Español, Français, Nederlands
Bluelab pH Controller Wi-Fi – Remote Dosing via Edenic App
- pH range 0.0-14.0, resolution 0.1, accuracy +/-0.1
- Pump flow rate up to 120ml/min, variable speed
- Connectivity optional Wi-Fi, Edenic app
- Power 100–240 V AC adaptor, 24 V DC 0.3 A output
- Operating environment 0-50C (32-122F)
- Includes pH probe, temperature probe, probe holder, 4m aci...
- Warranty 2-year controller, 6-month pH probe
- Control pH up or pH down, user selectable
- Control range 0.1–13.9 pH
- Calibration two or three point
- Temperature 0–50°C, accuracy ±1°C
- Probe cables 2 m
- Wi-Fi 2.4 GHz, 802.11 b/g/n
- Bluetooth Bluetooth 5 (Low Energy)
- Signal range 20 m indoor, 50 m line of sight
- Humidity 5–95% RH
- Protection not IP rated, indoor installation
- Dimensions 19.0 x 10.5 x 17.7 cm
Dimlux Maxi Controller V1.2 – CO2 Sensor & 10m Cable Kit
- Controller Dimlux Maxi Controller V1.2
- Sensor Dimlux CO₂ Sensor with integrated light cell
- Cable Length 10 metres, data plug to "CO₂" slot
- Controls Lighting, CO₂ dosing, heaters, humidifiers
- Night Dosing Disabled automatically via light cell
- Lamp Dimming Automatic on ambient temperature threshold
- Sensor Power Mains wall socket, switched outlet for CO₂ genera...
- Relay Required No – connects directly without relay, time delay ...
Bluelab Pro Controller Wi-Fi – pH & EC Automation
- Brand Bluelab
- Measures pH, conductivity and temperature
- Monitoring Continuous, 24/7
- Connectivity Built-in Wi-Fi, integrates with Edenic.io, can be...
- Probes Replaceable, high-precision
- Dosing Automated via Bluelab PeriPod M3, M4 or L3 (sold ...
- Temperature control Compatible with Bluelab PowerPod
- Safety Lockouts, visual alarms and automated dosing stops
- Settings Customisable pH, conductivity and dosing routines
- CF range 0 to 50 CF
- Conductivity control range 0.1 to 4.9 EC
- Conductivity range 0.0 to 5.0 EC
- pH control range 0.1 to 13.9 pH
- pH range 0.0 to 14.0 pH
- ppm 500 range 0 to 2,500 ppm 500 (TDS)
- ppm 700 range 0 to 3,500 ppm 700
- Signal range 20 m indoor, 50 m line of sight
- Temperature control range 1 to 49°C
- Temperature range 0 to 50°C (32 to 122°F)
- Conductivity accuracy ±0.1 EC at 25°C
- pH accuracy ±0.1 pH at 25°C
- pH resolution 0.1 pH
- Temperature accuracy ±1°C at 25°C
- Conductivity calibration Optional, factory calibrated
- pH calibration One, two or three point (7.0, 4.0, 10.0)
- Waterproof rating Not IP rated, splash proof
- Display Large green LED, adjustable brightness
- Power supply 100 to 240 VAC, 50/60 Hz adaptor
- Probe cable length 2 m (6 ft) on each probe
- Probes supplied pH, conductivity and temperature probes
- App Edenic, Android 8.0+ or iOS 12+
- Bluetooth Bluetooth 5 (Low Energy)
- Dosing off-time 0 to 59 min 50 s, in 10-second steps
- Dosing on-time 1 to 10 minutes, in 1-second steps
- Dosing outputs Up to 3 PeriPods (M3, M4 or L3) chained
- Operating humidity 5 to 95 %RH
- Plug types 4 interchangeable
- Warranty 2 years, 6 months on the pH probe
- Wi-Fi 2.4 GHz, 802.11 b/g/n
Bluelab Pro Controller Connect – pH & EC Doser
- Controls pH, EC (conductivity) and nutrient temperature
- Dosing channels pH plus up to 11 nutrients (PeriPods required)
- Increments pH and EC adjustable in 0.1 steps
- Scheduling week-by-week programmable feed schedule
- Connectivity 2.4 GHz ISM via the Connect Stick 2, included
- Peripherals PeriPods, PowerPod, external dosing pumps, chille...
- Measures pH, conductivity and temperature
- CF range 0 to 50 CF
- Conductivity control range 0.1 to 4.9 EC
- Conductivity range 0.0 to 5.0 EC
- pH control range 0.1 to 13.9 pH
- pH range 0.0 to 14.0 pH
- ppm 500 range 0 to 2,500 ppm 500 (TDS)
- ppm 700 range 0 to 3,500 ppm 700
- Signal range 20 m indoor, 50 m line of sight
- Temperature control range 1 to 49°C
- Temperature range 0 to 50°C (32 to 122°F)
- Conductivity accuracy ±0.1 EC at 25°C
- pH accuracy ±0.1 pH at 25°C
- pH resolution 0.1 pH
- Temperature accuracy ±1°C at 25°C
- Conductivity calibration Optional, factory calibrated
- pH calibration One, two or three point (7.0, 4.0, 10.0)
- Waterproof rating Not IP rated, splash proof
- Power supply 100 to 240 VAC, 50/60 Hz, 5 VA
- Probe cable length 2 m (6.5 ft) on each probe
- Probes supplied pH, conductivity and temperature probes
- Adaptor output 24 VDC, 0.4 A
- Dosing off-time 0 to 59 min 50 s, in 10-second steps
- Dosing on-time 1 to 10 minutes, in 1-second steps
- Plug types 4 interchangeable
- Software Bluelab Connect, Windows XP or later
- Warranty 2 years, 6 months on the pH probe
The full range
pH and EC meters for grow tent feeding
Checking pH and EC before every feed is the single habit that separates a struggling grow from a consistent one. Nutrients lock out fast outside pH 5.8–6.2 in coco or hydro, and an EC that creeps up feed after feed without you noticing is the most common cause of tip burn we see reported in-store. A pen meter takes ten seconds — there's no good reason to skip it.
Bluelab is the trusted end of the range here: the pH Pen (£89.95) and EC Pen (£79.95) are built to last years, the Nutrient Truncheon (£89.95) needs no calibration for quick EC checks, and the Combo Meter (£233.95) or wifi-enabled Guardian Monitor (£314.95) suit anyone running multiple tents who wants one number to trust. For starting out, the Grow Gadgets Hobby pH Pen (£19.95) and Hobby EC Pen (£14.95) do the job without the outlay, and a basic pH Test Kit (£4.95) covers you if a pen ever dies mid-grow.
The habit that keeps a meter accurate
A pH probe that dries out between uses drifts fast and reads wrong when you need it most. Store the probe wet — Growth Technology pH Probe Refill & Storage solution (£5.95) is made exactly for this — and run a pH Probe Cleaner (£5.95) through it every few weeks if you're feeding hard water. Calibrate weekly, not monthly, and always calibrate before you notice a problem rather than after.
Once your numbers are right, the next step is correcting them — see our pH and nutrient control range, and if you're new to coco our coco feeding guide walks through target ranges stage by stage. Free UK delivery over £99, or call 020 3488 0419 if you're deciding between a pen and a full meter.