▲ Auto Ranging 4,000 Count True RMS DMM TPI’s 440 has 9 measurement functions and 0.3 basic DC accuracy. ▲ 1 MHz Oscilloscope View industrial power signals such as motor controls, UPS, switching power supplies, and PLC controls with detail and clarity. ▲ Trend Mode Graph readings over a predetermined time period to check for surges or dropouts. ▲ Component Test Check voltage-current signatures on capacitors, resistors, semiconductors and much more. ▲ Logic Test Indicates transitions up to 2 MHz. ▲ Frequency Counter Measure low frequency signals from 1Hz to 2MHz and display duty cycle, pulse width and period.