HT Instruments HT712 Pen Multimeter + Phase Rotation Meter HT712 is a professional and innovative multimeter designed for electrical installation sector to fully satisfy the “on field” operator requests as accuracy, easy to use handling and reduced dimensions thanks to particular narrow and long sizes. This meter performs Voltage AC/DC measurements in Autorange up to 600V, Frequency, Resistance and Continuity Test. AC Voltage measures can be performed also with patented 1-wire system which permit easy measurements with one hand only. HT712 also performs 1-wire Phase Sequence and Phase Conformity test using Red test lead on the upper part and simply touch the insulated part of wire. In this way the Green or Red LED give the positive (OK) or negative (FAIL) result of test. HT712 is designed for pollution degree 2 environment, according to EN 61010-1 with CAT IV 600V.