Product Description:1. Multi-function such as zero-fire wire discrimination, wire breakpoint detection, wire on-off detection, battery self-test, etc.2. Small and portable, the clip design is convenient for electricians to carry out maintenance3. The green light is always on at the position where the line is connected, and the line is disconnected when the light is not on.4. High hardness chromium-vanadium steel material has good electrical conductivity5. After the battery is installed, the screwdriver and electric pen need to self-testProduct Type: LED Screwdriver Electric PenItem model number: B12Material of batch head: vanadium steel batch headMeasuring range: 24~250VBit diameter: 3mm/0.1linNet weight: 17g (without battery).Battery model: 3 AG3 button batteriesMaterial: Drop-resistant insulating ABSProduct List:1*Multifunctional induction test pen