PH Meter, DDS Meter, TDS Meter, Multipara Meter. A & E Lab. Main Products: Atomic Absorption Spectrometer (AAS), Fluorescence ... automatic temperature compensation.Keypad and Electrode Holder:The meter with waterproof panel, it's user can not worry for the ... .01)Temp. Compensation0~100oC, Manual0~100oC,AutomaticPower RequirementsDC9V, using AC adapters, 220VAC, 50HzDimensions & Weight210(L)mm×205(W)mm ...