Bluelab Replacement pH Probe Green Lights just rehydrate them with water

just rehydrate them with water and they’ll be good to go

compound-rich flowers

boosting growth and maximizing flower production

DWC Base Nutrient Compatibility pH Perfect

Contains premium humic acids that improve the structural integrity of the root zone

Bluelab Replacement pH Probe Green Lights just rehydrate them with waterA 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