Digital Electric Voltage Circuit Tester Automotive Test Light Car Truck 3-48V US
Type: Digital Electric Circuit Tester. LED circuit boards with microcurrents are safer and more burn resistant than traditional test lights for automotive computer boards. You can attach the alligator clamp to negative or positive ground, there is also a light-emitting diode on the circuit board for polarity indication(red light indicates positive polarity, green light indicates negative polarity).