Abs Digital Voltmeter Three-digit Two-wire Head Dc 5v-120v Black-green

Description

Simple connection: the voltage monitor is powered by the circuit under test, and the two-wire system does not need to connect an additional power source Wide application: applied in distribution boxes, power distribution cabinets, voltage stabilizers, teaching appliances, small household distribution boxes Practical split type design: the green terminal is connected to the AC transformer CT, the red and black wires are connected to measure the AC voltage