Electro-Tek Circuit Tester, a tool used for testing low voltage electrical circuits.
Functionality: It's designed to test circuits, fuses, and light sockets, and can help locate broken or live wires.
Voltage Compatibility: This specific model is suitable for 6V, 12V, and 24V circuits, making it useful for automotive systems and other low-voltage applications.
Features: It typically features a telescopic needle design for ease of use and a flexible wire for durability and storage.