Accurately and simultaneously test the resistance of all 3 windings in 3-phase motors in 60 seconds with Pico Technology’s MT03A Milliohm & Motor Tester. Also includes auto-temperature compensation. Use on EV motors, fuel pumps, AC compressors, blowers, EGR valves, turbo actuators and more. As a milliohm tester, check grounding and the resistance of switches, relays, connectors, wiring, etc.