Features： 1、Usage of Tester: Test pen is used for checking fuses, switches, armatures, distributors and electrical circuits to locate short and open circuits quickly and easily. 2、Digital Display: The circuit probe tester adopts digital display, allowing you to see the voltage more clearly, accurate voltage readouts,accurate to 0.1 volt. 3、Universal Applications: Voltage tester pen can be used for cars, trucks, boats, trailers, RV's, motorcycles, snowmobiles and other maintenance operations. 4、Probe Pen: The voltage test pen with probe is convenient to use, allowing for easy piercing and hard to reach areas, and the spring wire can be stretched as needed. 5、Exquisite Manufacturing: Electric circuit detector is made of durable ABS and copper material, not easy to damage, and the voltage of the tester is DC3‑36V. Specification： Item Type: Car Voltage Tester Material: ABS + Copper Application: Universal Package List： 1 x Voltage Test Pen