The Auto-Instruction feature guides the user step-by-step through the calibration process with graphic symbols. The automatic calibration procedure is simple and quick and can be performed at 1 or 2 points selected from 5 memorized buffers: pH 4.01, 6.86, 7.01, 9.18 and 10.01. A stability indicator assures a correct calibration.

This meter also features an automatic shut-off to save battery life.