Use of TesterTest pens are used to check fuses, switches, armatures, distributors and circuits to locate shorts and opens quickly and easily. Probe PenThe voltage test pen with probe is easy to use, easy to pierce and hard-to-reach areas, and the spring wire can be stretched as needed. Well-MadeThe circuit tester is made of durable ABS and copper material, not easy to be damaged, and the tester voltage is DC336V. Digital DisplayThe circuit probe tester adopts a digital display, which allows you to see the voltage more clearly, and the voltage reading is accurate to 0.1 volts. Wide ApplicationsVoltage test pen can be used for cars, trucks, ships, trailers, RVs, motorcycles, snowmobiles and other maintenance operations. ; Note, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm error Quantity: 1-pack of 'Car Detection Test Pen' other products not included Size: As shown (for reference only) Color as shownProducts from Bazhou's store