pH Meter, pH Range 0.00 to 14.00, Waterproof IP54, Automatic Temperature Compensation Yes, Operating Temp. Range (F) 50 Degrees to 104 Degrees , Operating Temp. Range (C) 5 Degrees to 40 Degrees , Display LCD, Auto Power Off No, Memory 30 Data Sets, Calibration 3 pt., Power Source 110/240V, Manufacturers Warranty Length 1 yr., Range 0.00 to 14.00, Number of Tests 0