ProductSpecificationDescriptionpHRange-1.0to15.0pHResolution0.01pHAccuracy 0.01pHTemperatureDisplay0to50 Cor32to122 FResolution0.1 C/ FAccuracy0.5 C/0.9 FNo.ofCalibrationPoints3pointspHBufferOptionsUSA-pH4.01,7.00,10.01;NIST-pH4.01,6.86,9.18LCDDisplayDualdisplaywithbatteryindicator,errormessages/codesATCYesSpecialFunctionsLargeDualCustomDisplay,Self-diagnostic;Holdfunction;Auto-PowerOffafter8.5minutesPower4x1.5Valkalinebuttoncellbatteries; 500hrs