Bluelab Replacement pH Probe – Replacement Electrode for Bluelab Meters

Frequently asked questions

• Which Bluelab meters is this probe compatible with?

  You can use it with the Bluelab Combo and with the Bluelab Guardian Monitor. It's also compatible with every model of Bluelab's continuous pH meters. Its standard BNC connector makes that fit easy.

• What measuring range and accuracy does it offer?

  The measuring range goes from 0.0 to 14.0 pH, covering the entire acid-base spectrum. Accuracy at 25 degrees is 0.1 pH, more than enough to fine-tune your nutrient solution with confidence. It's the same reading quality you'd expect from a Bluelab device.

• What does the probe come with for installation?

  It has a standard BNC connector, a suction cup that acts as a wall mount, and a 2-meter cable. That length gives you room to place the monitor wherever is convenient while leaving the probe in the reservoir. It also comes protected by a gel-filled casing that keeps the electrode in optimal condition.

• When should the pH probe be replaced?

  You should replace it if the glass tip has cracked or broken, or if it shows a brown discoloration that won't come off. Also when the meter won't stabilize its reading and the numbers keep drifting, or when the cable is frayed or damaged. Any of these signs means the probe has reached the end of its useful life.

• How do I extend the electrode's lifespan?

  The most important thing is to prevent it from drying out. Always store it with its cap on and clean it at least once a month with a cleaning solution. With that basic care, the probe will last you much longer.

• Is it easy to clean?

  Yes. Its high-quality glass structure and tubular shape make cleaning very simple, with no nooks where dirt can build up. That helps keep readings stable for longer.