Range-(-2 to 16.00pH), pH Resolution-0.01pH,Accuracy-±0.01pH,Calibration points-Upto 3 points,pH Buffer option-USA(pH 4.01,7.00,10.01) or NIST,mV Range-±1999mV,Accuracy-±1% FS ±1 digit,Resolution-1 mV,Temperature Range-0 to 105°C,Accuracy-±0.5°C,Resolution-1 mV,Temperature Compensation- 0 to 100°C, Manual /Automatic,Hold function-Available,Auto off Function-Available,Connector-BNC, Display-Backlight LCD,Power-DC9V,AC220V, 5Hz,Dimensions-210×205×75mm,Weight-1.5Kg