The Extech MA160 is an open jaw TRMS 200A AC/DC clamp meter. Its open jaw design provides quick current measurements in tight locations without breaking the circuit. True RMS provides accurate readings on noisy, distorted or non-sinusoidal waveforms. Convenient built-in Non-Contact Voltage (NCV) Detector allows quick detection of live voltages while the LED backlight, with two level brightness, and flashlight help take measurements in dimly lit environment. The Extech MA160 also features AC Voltage to 750V, DC Voltage to 100V, Resistance, Capacitance, Continuity and Diode test as well as auto power off and ergonomic housing with built in test lead holders.