PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM
Save power, extend battery life. PH tester 4 Display modes: press SHIFT button: TDS - ppm & °C, EC - μs/cm & °C, TDS - ppm & °F, EC - μs/cm & °F. Users can use it directly. Total concealed fit in your bag or pocket for easy, casual carrying.