


Probe for Bluelab continuous pH meters. This is the same pH probe for all meter models, including the pH only, Combo, and Guardian Bluelab.
Description
The Bluelab pH probe is the official replacement designed for all Bluelab continuous pH meters, including the pH Meter, Combo Meter, and Guardian Monitor models. This replacement ensures precise and stable measurement at all times, maintaining the original performance of your equipment without needing to replace it entirely. Its universal design and standardized connection allow for easy probe replacement, restoring all reliability and accuracy to your meter.
One of the main advantages of this electrode is its broad compatibility with all the brand's pH control devices. Whether you use an individual meter or an advanced monitoring system like the Guardian, this probe connects without complications. It is manufactured under Bluelab's quality standards, a company recognized worldwide for its precision in measuring cultivation parameters and nutrient solutions.
The Bluelab pH probe incorporates a sealed internal gel system that eliminates the need for maintenance tasks, refills, or complex calibrations. This gel provides an extended lifespan and consistent readings over time. Unlike other probes with liquid solutions, this technology reduces the risk of leaks or evaporation, ensuring more reliable and uninterrupted measurement.
Thanks to its robust construction and highly sensitive tip, this probe is capable of offering accurate measurements even in solutions with different concentration levels. Its outer coating protects the sensor against impacts and demanding conditions, both in domestic environments and professional installations. It is ideal for hydroponic crops, automated irrigation systems, or nutrient reservoirs, where pH precision is key to plant health.
Probe installation is very simple: just disconnect the old one, connect the new one in its place, and calibrate the meter if necessary. In a matter of minutes, your device will be ready to continue working with the same reliability as on day one. Its Plug & Play design allows for quick changes without additional tools or complicated configurations.
The Bluelab replacement pH probe is a practical and durable solution to keep your meter in perfect condition. It offers easy installation, high precision, and zero maintenance, making it an essential component to ensure reliable readings at all times. With it, you can continue to control the pH of your cultivation solutions with complete safety and accuracy, extending the lifespan of your Bluelab equipment.
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13/10/2025
My plants look so much healthier since I started using this. What a difference stable pH makes! Big fan.
12/10/2025
First time using a proper probe instead of those strips. Makes nutrient adjustments way easier, especially when plants are sensitive. Any tips for keeping it lasting longer?
06/10/2025
Had trouble with pH drift before, but this has been rock solid. How often do you guys calibrate these things, like once a week?
28/09/2025
Super fast delivery! Got it the next day and it's been great. Is it normal for them to be so accurate right out of the box?
26/09/2025
Came super quick! Just put it in the reservoir, readings are quick and stable. Hope it lasts longer than my last one did.
23/09/2025
My readings used to jump all over the place. Now they're super stable, takes literally seconds to get a number. This product is fantastic!
13/09/2025
Just works. Simple as that. My last one was such a headache with calibration.
11/09/2025
Finally, consistent pH. Game changer for my hydro setup. What a difference precise feeding makes!
29/08/2025
Used a cheaper pen for ages, always had doubts about its accuracy. Decided to upgrade and glad I did. This thing gives instant, stable readings which really helps when you're mixing up a fresh batch of nutes. A solid investment for any grower!
27/08/2025
Totally worth the price. I was skeptical but my plants really tell the story. Big healthy leaves and strong growth.
23/08/2025
Spot on readings every single time! No more guessing my pH. My plants are definitely happier for it!
17/08/2025
This thing is a lifesaver. It’s super responsive, and the calibration process is a breeze. My plants were getting all sorts of deficiencies, but with consistent pH, things are finally turning around. Definitely seeing better growth, healthier leaves. Happy customer for sure!