Labeled “IN” or “OUT”

and research applications

regular calibration with fresh buffer solutions

and Giardia

Need help deciding which meter is right for you

PH80 + TDS-4TM + pH 7 + C342 ppm COMBO - HM Digital Meter/Solution 1 inch water filter housing Labeled “IN” or “OUT”eBay PH 80 PH 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)