VIVOSUN PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality Tester, Army Green

High Accuarcy: Tester has a sensitive electrode sensor to read accurate PH levels; the included detailed manual will show you how to get the best accurate and stable reading
Easy to Calibrate: Press CAL for 5 seconds to enter the calibration mode, press in turn to select the powders corresponding to 6.86, 4.01, and 9.18 to complete the calibration
Easy to Carry: Pocket size, lightweight, handheld design for portability and convenience
LCD Digital Display: Easy to use no matter in the day and night environment, and accurate measurement and clear display results
Widely Used: Ideal for Household or commercial use, water, pool, spas, liquid food, laboratory, aquaculture and hydroponics

VIVOSUN PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality Tester, Army Green