Non-Contact AC Voltage Tester/Voltage Tester Pen with Adjustable Sensitivity, LCD Display, LED Flashlight, Buzzer Alarm… Price: $15.96 (as of 23/02/2021 21:49 PST- Details)

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▲Non-Contact & Safe Voltage Tester – Testing can be achieved without physical contact for its NCV Inductive Probe; Insulation operation ensures the safety of testing; In testing AC voltage, it can automatically detect the live wire or null wire; Intelligently identify Electric Field; In the vicinity of the voltage to be tested, the pen will give an alarming sound;Safety Compliance:CAT.III 1000V CAT.IV 600V;CE