A replacement probe for Bluelab Combo and pH Meters as well as the Bluelab Guardian Monitor. The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution. Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a month) you will extend its life. 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! Features 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
