😃 - Product name: Screwdriver Pen. - Net weight: 43g. - Shell material: ABS plastic. - Batch head material: chrome vanadium steel magnetic. - Battery model: 3 LR41 button batteries. - Batch length: 25mm/0.98 inch. - Bit Specifications: Word/cross. 🎈 - B05 Function Introduction - Zero live wire determination: Hand touch cap test socket. Green light indicates zero line, and traffic light indicates fire line. 🛠️ - Voltage sensing: Green light turns on when voltage is sensed. - Line breaking point judgment: Check along wires. Where green light disappears is the breakpoint. - Bright beads: High brightness for easier measurement, still visible in sunlight. - Intelligent chip: Main board with professional upgraded chip control program for higher security and longer service life. - Electrical switch detection: Electric pen contacts contact rod. If inner core of wire is not damaged, LED green...