Bluelab Replacement pH Probe Light Sensor 5” L x 12

5” L x 12

With this temperature sensor

Easy-to-use digital display humidity readings

A 945 Watt CMH DE Fixture

Plastic bags w/ holes

Bluelab Replacement pH Probe Light Sensor 5” L x 12The Bluelab pH Probe is a replacement pH probe 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