Specification Name: 3.5-36V Automotive Power Supply Tester voltage range: 3.5-36V Rated current: 1-8Amp Cable length: 4.5 meters / 14.7 feet Size: 260*40*28mm/10.21*1.57*1.1 inch DESCRIPTION MULTIFUNCTIONAL AUTOMOTIVE CIRCUIT TESTER: This multifunctional automotive circuit tester is designed to meet a variety of testing needs including continuity testing, voltage polarity testing, light checking, motor checking, tracing and identifying short circuits and testing for ground faults. It is a must-have tool for car owners and professional mechanics, providing accurate and reliable results CONVENIENT FLASHLIGHT DESIGN: Equipped with a built-in flashlight, this probe tester can be easily inspected and maintained in dark places. Simply connect the red and black clips to the positive and negative terminals of your car battery to use the electrodes. In addition to its testing function, it can also be used as a light to provide extra convenience during operation USER-FRIENDLY OPERATION: This circuit tester features an easy-to-use design that simplifies the testing process. By disconnecting the tester cable and connecting the red clip to the positive battery terminal and the black clip to the negative terminal, the blue digits on the display show the current battery voltage value while the front light comes on. Reversing the connection will cause the light to remain on without displaying the voltage value. Its RELIABLE AND EFFICIENT TESTING: The Power Circuit Probe Tester is equipped with an LCD display that makes it easy to test voltages from 3.5 V to 36 V. The LCD display shows the current battery voltage and the current battery voltage. Values are displayed on the screen, ensuring accurate readings for a variety of automotive applications. In addition, the long lead (14.7 ft.) allows easy power and ground connections from the battery to the desired test location! Product List 1 * Power Supply Tester