Feature: 1. 2 in 1 Function: This circuit test pen integrates neutral live wire detection and power off search, without the need for frequent equipment replacement, making it convenient and efficient, and improving work efficiency. 2. Intelligent Induction: Through NCV non contacting voltage detection, this circuit tester can quickly and accurately detect neutral wire, live wire, leakage, and tripping situations, ensuring the individual security of users. 3. Power Off Search: This circuit tester has a powerful power off search function, which can quickly find the fault point of the circuit through simple control, saving error checking time and improving maintenance efficiency. 4. LCD Display Screen: This socket circuit analyzer is equipped with an LCD display screen, which clearly and intuitively displays all measurement data without worrying about misjudgment due to improper reading. 5. Easy to Operate: This portable circuit tester has a simple design and clear buttons, making it easy to get started even without professional skills. All test results will be directly displayed on the LCD, improving work efficiency. Specification: Item Type: Circuit Tester Pen Product Material: ABS Battery: 1 x AAA Battery (not included) Weight: Approx. 112g / 4oz. Package List: 1 x Circuit Test Pen1 x User Manual1 x Storage Bag