... range,±1999Temperature range,-5.0~105.0°CpH Resolution,0.1/0.01/0.001 mV range,0.1Temperature range ,0 ... %FS (in other range)Temperature Accuracy±0.3°C±1 bitStability, (±0.005pH±1 bit)/3hTemp compensation,Manual/Auto(-5.0~105.0 ... , delete and print,Equipotential adjustment,Display,LCDCommunication interface,RS-232Software,1.1DCPower,Universal power adapter (9V DC,500mA,inside - positive, outside ...