Bluelab Replacement Soil PH Probe

Probes contain a KCl (Potassium Chloride) solution that allows it to measure acidity or alkalinity. Over time these probes can 'dehydrate' and need to be regularly maintained to ensure precise analysis. 

The Bluelab Soil 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!