ITEM NAME:Digital Car Circuit Scanner Diagnostic Tool Tester DC5-36V pen LCD display D3B7 Feature 1 Material: Made of high quality automotive test pencil. 2〠Easy to Use: Connects in seconds; with LCD display; easy to distinguish between positive and negative. 3〠Measuring Tool: Suitable for car repair electric pen voltage measuring tool. 4〠Easy Operation: Portable 1.65m long enough TPU spring wire for easy operation. 5〠Voltage Range: 5-36V; widely use circuit tester/circuit test light. Designed to check car electrical circuits and other 5-36V wiring and circuits Features: Use this car voltage digital tester to check the.1 Tester pen. Designed to check car electrical circuits and other 5-36V wiring and circuits. Connects in seconds. Troubleshoot circuit cable plug connections quickly. 2〠Easy to Use: Connects in seconds; with LCD display; easy to distinguish between positive and negative.