Item Name: Automotive Truck Voltage Tester Car Circuit Tester Pen Car Circuit Tester. High safety and no heat in operation - Innovative elastic wire with fine tensile propertyCable Total Length (Stretch): 240cm/ 94.5"Testing Range: DC 6V-12V-24VTester Length: (Approx) 15cm/ 6"Designed for detecting faults in low tension circuits of traffic or transport machinery.