AC-02 Live Wire Digital Electrical Testing Non Contact Low Voltage Smoke Detector Electric Pen Circuit Tester

electric pen tester electrical low smoke detectors testing circuit digital non-contact live wire voltage detector 1.Application Detecting Live Wires:The primary use is to identify if a wire, outlet, or terminal is carrying voltage by glowing or beeping (depending on the type). Checking Phase (Hot) & Neutral Wires: In AC circuits, it helps distinguish the live (phase) wire (which lights up the pen) from the neutral wire (no light). Verifying Power Presence : Confirms whether a circuit is energized before maintenance to ensure safety. Testing Fuses & Switches : Determines if a fuse is blown or a switch is functioning by checking for voltage at terminals. Grounding Verification : Some advanced test pens can indicate poor grounding or leakage currents. Low-Voltage Indication : Certain models detect low-voltage DC or AC signals in electronics. 2.Features • non-contact detection of AC voltage • LED indicator and buzzer • practical design, easy to carry around • for use on 50/60 Hz circuits voltage range 90-1000 V safety rating CAT IV / 1000 V operating temperature -10 °C to +50 °C power supply. 2 x AAA batteries LR03 (incl.) dimensions 118 x 39 x 20 mm weight 37 g (with batteries)