IP67 watertight portable pH meter. Resolution 0.1 pH with microprocessor and fixed sensor. Push-button calibration on 1 or 2 points (choice between pH 4, 7, 10). Large LCD display with indication of the pads used for calibration and measurement stability. Automatic temperature compensation. Auto power off. Self-diagnosis messages: low batteries, calibration errors. Power supply 2 x 1.5V AAA batteries included, also compatible with rechargeable batteries. The Kit includes: pH 7 and pH 4 buffer solutions in a 25 ml sachet, storage solution in sachet, calibration cap, strap, handkerchiefs and cardboard case. 6 month warranty on the electronic part.