Features 1、A widely used circuit tester/circuit test lamp designed to check automotive circuits and other 3‑48V wiring and circuits. 2、With a sharp stainless steel probe, used to pierce wires to reach hard-to-reach areas. 3、With a 3.3m long PU spring wire, it is portable, easy to operate, and highly practical. 4、The digital display can make you understand the actual situation of the circuit more clearly and make judgments easier. 5、It can be tested by electricity. No complicated operation steps are required and it is very simple. Specifications: Item Type: Digital Circuit Tester Material: ABS+Stainless Steel Power Supply Voltage: 3-48V Working Temperature: 0-45℃ Minimum Resolution Value: 0.1V Accuracy: ±0.8%+3-digit display Application: For Car How to Use: Test with electricity Maximum Line Length: Approx. 3.3m/10.8ft Pen Length: Approx. 210mm/8.3in Package List 1 x Digital Circuit Tester