Galacok B05 Slotted/Phillips Screwdriver Neon Bulb Indicator Detector Insulated Electrician Pocket Tester Pen Tools - B05 Basic Information - Metal pen cap with colors shipped randomly. 😃 - 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 upg...