SALIENT FEATURES During the pH mode, up to 3 points push-button calibration with auto- buffer recognition. (USA & NIST Buffer) Selectable pH buffer standards and temperature units. Automatically Electrode diagnosis shows the pH slope and offset. Automatic Temperature Compensation (ATC) ensures highly accurate measurement over the entire range. Automatic endpoint function freezes the stable measured values. Help message as an operational guide to help & understand how to use meter. Setup menu allows setting pH Buffer set, number of calibration point, temperature, unit etc. user customizes buffer standards, calibration points, stability conditions, resolution, temperature units, date and time to meet measurement requirements. Reset function can resumes all settings to factory default values. Expanded memory stores and recalls up to 100 readings. USB Interface