Bluelab Guardian Monitor (Wifi Version) – pH EC Temp Alerts
Bluelab Guardian Monitor (Wifi Version) – pH EC Temp Alerts
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Description
Watch your reservoir from anywhere, day or night
The Bluelab Guardian Monitor (Wi-Fi Version) continuously tracks reservoir pH, conductivity and temperature and pushes alerts straight to your phone, so a drifting pH or a failing pump is caught before the crop pays for it. It carries every feature of the standard Guardian but adds built-in Wi-Fi and full compatibility with the Edenic app, letting you check live readings, review logged history and receive instant alarm notifications from wherever you are.
It comes in two versions. The reservoir version hangs its probes in the tank; the Inline version ships with probe fittings for 1" NPT pipework, so pH, conductivity and temperature are read inside the irrigation or dosing line itself, at line pressures up to 7 bar (100 psi). Its combined conductivity and temperature probe needs no calibration, and its replaceable inline pH probe can be mounted in any direction.
Losing crops to unnoticed reservoir drift?
Most reservoir failures, a pH swing, a spike in conductivity or a temperature creep from a dead pump, happen quietly between visits and only show on the plants days later. The Guardian's continuous monitoring and high/low alarms flag the problem the moment a reading leaves your set range, giving you time to react rather than diagnose damage after the fact.
Key Benefits
- Three readings at a glance: live pH, conductivity (EC/CF/ppm) and temperature on one plant-safe display
- Built-in Wi-Fi with the option to disable it if you don't want remote monitoring
- High/low alarms for pH, temperature and conductivity, sent as instant Edenic app notifications
- Non-volatile memory holds your settings and calibration through a power loss
- Plant-safe green LEDs with adjustable display brightness for dark-period growing
- Remote history and reporting so you can spot trends and act before a problem takes hold
- Inline option: screw-fitted probes read the feed line directly and are rated to 7 bar, ideal alongside a dosing system
How to Use
- Reservoir version: site the monitor beside the reservoir and suspend the pH and conductivity probes in the nutrient solution using the 2m cables
- Inline version: fit the supplied probe fittings to 1" NPT ports in the feed line and screw the pH and conductivity probes in; the inline pH probe can face any direction
- Connect the unit to your Wi-Fi network and pair it with the Edenic app
- Set your high and low alarm thresholds for pH, EC and temperature
- Calibrate the pH probe regularly with Bluelab pH 4.0 and 7.0 solutions for accurate readings
- Check the app for live values, logged history and instant alerts wherever you are
Technical Specifications
- Measures: pH, conductivity and temperature
- pH range: 0.0 to 14.0 pH
- pH resolution: 0.1 pH
- pH accuracy: ±0.1 pH at 25°C
- pH calibration: two-point, pH 7.0 then 4.0 or 10.0
- Conductivity range: 0.0 to 5.0 EC
- CF range: 0 to 50 CF
- ppm 500 range: 0 to 2,500 ppm 500 (TDS)
- ppm 700 range: 0 to 3,500 ppm 700
- Conductivity units: EC, CF, ppm 500 and ppm 700
- Conductivity resolution: 0.1 EC
- ppm resolution: 10 ppm
- Conductivity accuracy: ±0.1 EC at 25°C
- CF accuracy: ±1 CF at 25°C
- ppm 500 accuracy: ±50 ppm at 25°C
- ppm 700 accuracy: ±70 ppm at 25°C
- Conductivity calibration: not required, factory calibrated
- Temperature range: 0 to 50°C (32 to 122°F)
- Temperature resolution: 1°C
- Temperature accuracy: ±1°C at 25°C
- Temperature compensation: automatic, with both probes in the same solution
- Conductivity/temperature probe cable: 2 m
- pH probe connection: BNC, replaceable probe
- Alarms: high/low for pH, conductivity and temperature
- Display: plant-safe green LEDs with adjustable brightness
- Memory: non-volatile, retains settings through power loss
- Connectivity: built-in Wi-Fi (can be disabled), Edenic app compatible
- 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
- App: Edenic, Android 8.0+ or iOS 12+
- Power supply: 100 to 240 V AC, 50/60 Hz in, 5 V DC out
- Plug types: 4 interchangeable: UK, Euro, USA, NZ/AU
- Mounting: wall (keyholes or 4 screws) or cable-tied to a bar
- Operating environment: 0 to 50°C
- Warranty: 2 years on the unit, 6 months on the pH probe
| By size | Bluelab Guardian Monitor Wifi Version | Bluelab Guardian Monitor Inline Wifi Version |
|---|---|---|
| Probe mounting | hang in reservoir | inline, in pipework |
| pH probe | Bluelab pH Probe | Bluelab pH Probe Inline |
| pH probe cable | 2 m | 3 m |
| pH probe thread | – | ¾" NPT (1" adapter incl.) |
| EC probe thread | – | 1" NPT |
| Max line pressure | – | 7 bar (100 psi) |
| Dimensions | 12.8 x 3.9 x 19.2cm | 12.8 x 3.9 x 19.2cm |
Frequently Asked Questions
Reservoir or Inline – which version do I need?
Choose the reservoir version to watch a nutrient tank. Choose Inline if you want readings inside the pressurised feed line, for example after a doser or on a multi-tank system. Display, alarms and Wi-Fi are the same on both.
Can the Inline version still monitor a reservoir?
Yes. Bluelab describe the Inline Wi-Fi monitor for reservoirs as well as inline systems; its probes simply need to sit in a line or port carrying the solution.
Does the conductivity probe need calibrating?
No – the conductivity and temperature probe is factory calibrated. Only the pH probe is calibrated, two-point in pH 7.0 then pH 4.0 or 10.0, and LED indicators remind you when it is due.
Works Well With
Replacement pH probe for the reservoir version
Questions & answers
What does it measure?
pH, conductivity and temperature, continuously. Conductivity can be shown as EC, CF, ppm 500 or ppm 700.
Can I check readings on my phone?
Yes. It connects to 2.4 GHz Wi-Fi and works with the Edenic app, which shows live readings, logged history and instant alarm notifications. You can switch Wi-Fi off if you don't want remote monitoring.
Does it need calibrating?
The conductivity side is factory calibrated and needs none. Calibrate the pH probe regularly with a two-point calibration: pH 7.0, then pH 4.0 or 10.0.
Will it work with a UK socket?
Yes. It runs on 100–240V AC and comes with four interchangeable plug types: UK, Euro, USA and NZ/AU.
What's the guarantee?
2 years on the unit and 6 months on the pH probe. The probe is a replaceable Bluelab pH Probe on a BNC connection.
