8-in-1 Electrical Circuit Tester, Multifunctional Voltage Tester, Continuity Detector Pen, 6V-380V Voltage Voltmeter for Circuit Voltage Testing

Features: ★【Indicates Voltage Range】The electrical voltage tester can be used to measure voltage in the range of 6V to 380V. Voltage measurement frequency: 50 to 500Hz. ★【LED Voltage Indicator】The LED indicators show the presence of detected AC/DC voltage. The low battery indicator detects voltage even when the batteries are dead. ★【Can be used in】Smelting, electronics, manufacturing, petroleum, national defense, energy, chemical, and other industries. Also used to troubleshoot complex problems in electronics, industrial automation, power distribution, and mechanical and electrical equipment. ★【Tips】Check that the power and lighting circuits are turned off before repairing.