Bluelab Temperature Probe – Replacement for pH Controllers
Bluelab Temperature Probe – Replacement for pH Controllers
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
- 14-day returns
- Price match promise
- Free Wembley store pickup
- Advice from the team: 020 3488 0419
Description
The temperature sensor your Bluelab controller relies on
The Bluelab Temperature Probe is the replacement solution-temperature sensor for Bluelab pH Controllers and Bluelab Pro Controllers. It sits in the reservoir alongside the pH and conductivity probes and feeds the controller a live water temperature, which the controller uses both to display and alarm on temperature and to compensate its readings. A stainless steel body, a 2 metre cable and a plug-in 3.5mm jack make fitting a two-minute job, and it never needs calibrating.
Key Benefits
- Made for Bluelab controllers - compatible with all Bluelab pH Controllers and Pro Controllers
- No calibration - plug it in and it reads
- Fast sensor response so temperature swings show up quickly
- Stainless steel and waterproof for permanent immersion in nutrient solution
- 2 metre cable with a 3.5mm connector for a quick swap
Water temperature affects dissolved oxygen, root health and the accuracy of every conductivity reading. When a controller's temperature probe fails or gets damaged, you lose that reading and your alarms, and warm-reservoir problems such as root rot and low oxygen can creep in unnoticed. A spare probe gets the controller back to full monitoring straight away.
How to Use
- Plug the 3.5mm jack into the temperature socket on your Bluelab pH Controller or Pro Controller.
- Place the stainless tip in the reservoir where solution moves freely, away from heaters and chillers.
- Route the cable clear of pumps and lids so it is not pinched.
- Wipe the probe clean when you service the other probes; no calibration is needed.
Technical Specifications
- 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

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.
