The Unisource DM1140B True-RMS Digital Multimeter, 1000V/750V AC/DC, 19999 Count is a benchtop digital multimeter featuring a large LCD display with 8-count dual display. This model offers a voltage test range up to 1000V DC or peak-peak value AC, and resolution up to 10uV. Measurement functions include DCV, ACV, DCA, ACA, CAP, Hz, temperature, diode, and continuity. Ac measuring adopts highly accurate True-RMS measurement, with testing frequency bandwith and AC DC measuring, capable of accurate Ture RMS measuring of any waveform in AC range.