6V 12V 24V DC Car Truck Voltage Circuit Tester Digital Display Long Probe Pen Light Bulb Automobile Diagn Dear friend, due to different arrival batches, the metal parts are white and black. Those who care should buy carefully. Product Description: This probe pen is ideal for checking circuits, fuses, switches and wiring on automobiles, trailers, boats, motorcycles and other low voltage systems. Connect the alligator clamp to the ground, then take the probe to test circuit. If the indicator light is on, there is electricity. Features: Handle is made of plastic and the hardened & tempered carbon steel probe is chrome plated. The sharp steel probe easily pierces wire insulation to check circuitry. Light in handle glows when circuit connection is complete. Test a range of circuits ranging from 6V to 24V. Light weight design and super convenient to bring with. Specifications: Material: Plastic, Carbon steel Color: As the picture show Clamp Capacity: 20A Bulb: 3 Watt Bulb (Replaceable) Voltage Range: 6V-24V Pen Length: 17.3cm / 6.8inch Probe Length: 8.3cm / 3.3inch Line Length: 96cm / 37.8inch Package Weight: 130g Quantity: 1pc The package: 1*Circuit Tester Note: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you