Features: Safety and Durable. The tool fitted with a sensitive short-circuit pretection, can protect your use security. Easy and convenient to use, the tester has good use performance and long service life. The electric circuit tester is a fast and efficient electrical scanning probe, suitable for 6-24V vehicle electrical systems. Widely Application. The tester can be used to test polarity of a voltage, check electric motor, follow and locate short circuits. etc. The automotive electric circuit tester is a great tool for the auto electrician and mechanic. Specifications: Material:Plastic+Metal Voltage:6-24V Size: Approx. 26.5 x 9 x 4 for cm / 10.43 x 3.54 x 1.57 inches Note: Please allow 1-2cm errors due to manual measurement. Because of the different display of each computer, the pictures may not reflect the actual color of the item. Package includes: 1 Set Auto Electric Circuit Tester