PHSCAN30 New practical and precise pH meter in a water-resistant encasement. With a clear display and a replaceable electrode : 2 points AUTO-calibration with push button (no screws !) ATC = Automatic temperature corrections from 0°C to 60°C, with temperature indication Replaceable electrode Scale pH per 0.01 ph, accuracy +- 0.05 ph ! With HOLD function Auto power off after 8 min 3 LR44 button batteries (included) Dimensions 180mm x 35mm