The MTD70T 600A True RMS AC Clamp Meter is a useful tool that allows you to safely test for electrical problems, motor’s condition and current on appliances. Equipped to test any electrical circuit without disconnecting any wires. Handy features include a backlit LCD display and flashlight for working in dimly lit areas. The NCV Non-Contact Voltage detector is useful for a quick check to see if voltage is present on circuit under test. It comes with a 28mm Jaw opening and measures 0.001A to 600A AC, DC and AC Volt, Resistance, Continuity buzzer and Diode Test.