Benchtop PH meter 1. LCD display, English operation system 2.Automatic and manual ... ),±0.03%FS (in other range)Temperature Accuracy±0.3°C±1 bitStability, (±0.005pH±1 bit)/3hTemp compensation,Manual/Auto ... ,Equipotential adjustment,Display,LCDCommunication interface,RS-232Software,1.1DCPower,Universal power adapter (9V DC,500mA,inside - positive, outside - negative) CE Certified ...