The LDTC1 standard leakage detector is a new type of intelligent detector that integrates leakage detection, directional indicator light, and distress alarm. The leakage detection function can detect high and low voltage power sources in real-time in unknown environmental situations such as urban waterlogging rescue and earthquake rescue, and detect leakage signals to provide firefighters with a safer rescue environment. When firefighters are in danger, they can manually sound the alarm or the instrument will automatically sound the alarm. Provide prompt rescue for firefighters in distress.