1. The product features an audible buzzer alert (approximately 100 dB) and a visual indicator light. 2. Usage: After inserting the test leads, touch the two ends of the wire being tested. An audible and visual alarm indicates continuity; no alarm indicates an open circuit. 3. The device includes a built-in 9V battery. The battery compartment cover is removable for battery replacement. When the red and black test leads are not connected to a circuit, no current flows and there is no power consumption. 4. When the test circuit is closed, the loop current is approximately 20 mA. This tester is not intended for use with sensitive electronic components or printed circuit boards (PCBs). Product Name: 9V Continuity Tester Note: This tool can be used to verify continuity in cables, wires, PCB traces, and other basic conductive paths. Precautions: Do not use while the device under test is powered or connected to an external power source. Color: As shown in image Material: Plastic Package Contents: 1 x Continuity Tester 1 x Multimeter Test Lead (pen-style) 1 x Red and Black Alligator Clip Test Lead Note: Only the items listed above are included. Other accessories are not included. Note: Color variations may occur due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.