A replacement probe with 2 meters of cable for Bluelab Combo and pH Meters as well as the Bluelab Guardian Monitor.

The Bluelab pH Probe is a direct replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of your solution.
 
Unfortunately, pH Probes do not last forever they age through normal use and will eventually fail but even faster when not taken care of and stored correctly by using a pH care kit and storage solution at a higher rate. With good care and use (keeping the probe tip wet and cleaning once a month) you will extend its life and maintain the accuracy and repeatability.
 
The Bluelab pH Probe has a double junction reference which provides a longer life than many other pH probes and is a gel filled non-refillable probe, so apart from cleaning is maintenance free.
 

• Replace only the pH probe, not the whole meter!
• Easy to clean
• Gel filled (non-refillable,'), low maintenance
• Double junction
• Waterproof cable joint
• Probe holder included – keeps probe secure
• Quality BNC connection
• 2 meter / 6.56 foot standard cable