The ennoLogic eM870M is a megohmmeter (insulation tester) and multimeter combined into one handheld instrument. An insulation tester is used to test the insulation of electrical systems. It applies a high voltage across the insulation and measures how much current is flowing. The better the insulation, the less current will flow, and the higher the insulation resistance will be. Insulation can deteriorate over time, which can lead to equipment breakdown. Periodic insulation tests performed as part of regular maintenance can prevent this.
The eM870M lets you choose from five different test voltages in the range of 50V to 1000V. Use it to test insulation and troubleshoot motors, transformer windings, relays, switches, circuit breakers, electric installations, and appliances. Insulation testers are used to check for moisture buildup in cables and wiring which can lead to equipment failure.
The product package includes one eM870M insulation multimeter, two pairs of test leads (one for attaching alligator clips), two alligator clips, one thermocouple probe, six AAA batteries, carrying case, and a detailed user manual (in English).