1. Material: full copper handle body, pure copper pen 2. Test range: 6V-12V-24V 3. Features: power failure detection, induction detection, voltage detection 4. Uses: Used for the detection of low voltage circuit faults in automobiles, bulldozers, road rollers, excavators, etc. 5. Net weight: 26g 6. Size: 10.5 cm in total length and 2.5 cm in length