Digital TDS 0-9999 Meter/Tester, Water/ppm/Purity new
TDS range: 0-9990ppm/mg/LTemperature range: 0 - 50 CAuto shut-off: 10 minutesData holdAccuracy:  2 %Powered by 2 LR44 cell batteries (included)1 X TDS water quality meter1 X User guide