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

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.

Specifications