Application of Ground Wire Locator: The wire finder adopts an advanced frequency generating device that can generate an alarm sound at the detection end. The closer the distance, the louder the sound. In noisy environments, an external headset can be used to listen for voice signals, and other metal cables can be detected using the adapter. The transmitter includes a DC level test function, where the signal level is indicated by the brightness of the status light: brighter light indicates a higher level, dimmer light indicates a lower level.Wire Tracer Range: Up to 2 feet deep and 3280 feet in length. Power supply: 9V alkaline battery (not included). Network cable tone tracing function with sequence length up to 1 km.How to Use: Attach the red clip to the cable being tested and the black clip to ground. This setup enhances signal strength and improves performance.Sound Level Adjustment: Features high-sensitivity sound level adjustment and supports headphone use for more convenient and comfortable operation.Note: Do not use on live circuits to avoid damaging the tester. This device is designed for locating unpowered cables or low-voltage lines under 24V. The F02 wire locator is suitable only for single-core and two-core wires, not for multi-core or bundled wires.