HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester 810666006830 5V button cell batteries (model

5V button cell batteries (model LR44 or equivalent

Digital automatic calibration (one point)

NaCl solution

Deionized water (DI) filtration systems that work well in applications such as industrial water filtration systems for car washes

very accurate

HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester 810666006830 5V button cell batteries (modelPH 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