Features 1. Multi functional automotive circuit tester: A simple automotive circuit tester can be widely used for continuity testing, voltage polarity testing, light inspection, motor inspection, tracking and identifying short circuits, and testing ground faults. The power probe tester ensures accurate results, making it an essential tool for any car owner or professional mechanic. 2. Flashlight design: The probe tester is equipped with a built-in flashlight, which can be used by placing the red and black clips on the positive and negative clips of the car battery, making it easy to detect and maintain in dark places. It can also be used as a lighting fixture. 3. Easy to use: Unplug the tester connection cable. Connect the red clip to the positive pole of the battery, and the black clip to the negative pole of the battery; At this point, the blue number displays the current battery voltage value and turns on the front lights; Reverse connection, no voltage value displayed, but the light is still on. 4. Reliable and convenient: The power circuit probe tester is equipped with an LCD display screen, allowing users to easily test voltage within the range of 3.5 V to 36 V and display values on the screen, making it suitable for various automotive applications. Do not use in all AC and power environments greater than 36V. A voltage range of 3.5 V to 36 V is displayed on the screen, making it suitable for various automotive applications. Do not use in all AC and power environments greater than 36V. 5. You will receive: the packaging contains a tester, accessories, and instructions. Specification Size: 26 x 4 x 2.8 cm (main unit); Line length: 4.5 meters Overcurrent protection current: 8A DC voltage range: DC3.5-36V Rated current: 1-8Amp Accuracy: 2% Product material: ABS Product line length: 4.5 meters Product size: 26 x 4 x 2.8 cm Working temperature: -10 -60 Relative humidity: 80% External power supply: Provides 12V or 24V DC power through the vehicle battery Material: ABS Color: Blue Size: 27 x 6 x 4 cm Weight: 390 g Package Include: 1x Automotive circuit tester