HT Instruments HT37 TRMS Digital Multimeter up to 4000 Counts with PEAK Feature HT37 perform basically AC/DC TRMS voltage measurements , DC/AC TMS current measures in totally autorange and AC voltage and current Peak values such important in industrial environments. The meter is designed for achieve CAT III 1000V and CAT IV 600V, with Class 2 protection (double insulation), according to EN 61010-1 safety Standard and have a internal fuse protection on input current. HT32 is fitted in a rubber holster for protection by hurts and a practical support for easy to use in horizontal position. HT37 have a large LCD 4 digit display (4000 counts) with analogical bargraph and each measurement function can be selected with a rotate selector at 10 positions. Other features are MAX and MIN measurements, HOLD function, manual range selection and Relative measurements. An Auto Power Off function is integrated to preserve the internal battery after 30 minutes of idleness.