Feature: 1. MAIN FUNCTION: The circuit breaker finder supports automatic sensitivity adjustment to quickly locate the target circuit breaker or fuse, ensuring safe power. 2. WITH 3 INDICATOR: The socket tester has 3 indicator lights, with a low battery warning, and can also test whether the triangular socket connection is correct. 3. WITH FLASHLIGHT: The outlet tester with flashlight is convenient for use in dark environments, allowing for quick identification of wiring and missing neutral wires. 4. BATTERY POWERED: The circuit breaker finder is powered by a 6F22 9V battery (not included), and is portable in design, making it easy to use anytime, anywhere. 5. APPLICABLE PLACE: This circuit breaker find tool is suitable for office, home, factory, etc., and is used for power grid reconstruction and engineering acceptance. Specification: Item Type: Circuit Breaker Finder Material: ABS Battery: 1 x 6F22 9V Battery (battery not included) Alarm Method: Sound Light Alarm Neutral Live Line Judgment: Yes FIND Adjustment Sensitivity: Yes. Package List: 1 x Circuit Breaker Finder 1 x Socket 1 x Storage Bag