DC 6V 12V 24V Automotive Circuit Tester Pen with Red and Green LED Indicator Light. Suitable for cars, trucks, motorcycles, boats, and more.

(Function) The test probe's flexible cable is 60cm in its static state and can be extended to 250cm in use. The cable is flexible and long enough for the user to move their arm and wrist freely, even when using it in the engine compartment of a small car. When the test probe touches the positive terminal, the green light illuminates. When it touches the negative terminal, the red light illuminates, which is advantageous for your use and improves maintenance efficiency. (Safety) The handle of the test probe is insulated, and the flexible wire is also wrapped in insulating plastic. When you connect the test probe to the circuit and detect faults in the vehicle's low-voltage circuit, the test indicator lights up. You can use it without worry, but you must be careful: the tip of the probe must not be touched during measurement, otherwise it will lead to measurement errors and a safety issue. (Easy to carry): The voltage test probe is designed to be lightweight and easy to take with you when traveling, which is very convenient. (Daily use): Applicable voltage range: 6V-24V. Applications: automobiles, motorcycles, trucks, excavators, loaders, drilling rigs, generators, and other types of machinery and equipment, for light bulbs, relays, injectors, ignition coils, solenoid valves, heaters, motors, and more. Types of actuators, such as the 6V/12V/24V power supply test. (Manufacturing process): The test probe is hardened for extreme durability and chrome-plated for increased reliability. The sharp steel probe can easily penetrate wire insulation to check the circuit. The handle is made of high-quality fine copper, resulting in a smooth, shiny, flawless, and dent-free surface.