HM Digital PH-80 pH Meter Waterproof PH80 Tester HydroTester Aquamira Replacement Filter RED-II-120 sliding reference that allows the

sliding reference that allows the user to easily purge tainted internal electrolyte

The Milwaukee CD600 Total Dissolved Solids (TDS) Pen is designed for hydroponics

Paired with the low maintenance

Foam-form cut insert for a snug

double junction pH electrode for low maintenance and high performance with exposed temp

HM Digital PH-80 pH Meter Waterproof PH80 Tester HydroTester Aquamira Replacement Filter RED-II-120 sliding reference that allows thePH 80: pH HydroTester Series The PH 80 has proven to be the MOST reliable pH meter in its price range. It has become a favorite in such applications as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water, and more. FEATURES Measures pH and Temperature One touch automatic digital calibration Water resistant Simultaneous temperature display Large LCD display Automatic Temperature Compensation (ATC) Auto off