- Intelligent Detection Technology: Sensitive induction smart sensor chips accurately identify neutral and live wires, providing reliable circuit testing results while prioritizing safety and efficiency. - Dual Functionality in 165 mm: A single tool that combines a circuit detection tester and a cross double screwdriver in a 165 mm form, saving space in your toolkit and enabling versatile testing and repair tasks. - Comfortable Grip Handle: Insulated non-slip handle is ergonomically designed to reduce hand fatigue during extended use, allowing precise control when testing circuits or using the screwdriver function in tight spaces. - Comprehensive Testing Capabilities: Suitable for professional electricians and DIY enthusiasts, this measuring pen excels at neutral/live wire identification and breakpoint induction detection, speeding up electrical troubleshooting. - Specifications and practicality: Overall length 165 mm; insulated, non-slip handle; dual-function tool combining circuit detection testing with a cross double screwdriver for versatile use. Use scenarios: - While wiring or inspecting a panel, identify neutral and live wires safely before proceeding with work. - Troubleshoot circuits quickly by using breakpoint induction detection to locate fault points and reduce downtime. - In tight or difficult spaces, switch between testing and tightening screws without swapping tools, increasing efficiency.