but the 5-Stage Filter is designed for non-fluoridated water supplies

12 VDC power supply included

1000 µS = 1 mS

and copper pipe

optional alarm

HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester pH monitor but the 5-Stage Filter isPH 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