Professional electricians in search of a reliable and safe electric test pen need look no further. This Intelligent Non-Contact Test Pen offers enhanced efficiency and safety compared to traditional test pens. Use it without fear of electric shock, and easily find breakpoints in wires or identify zero and live wires. With this innovative tool, you can work confidently and effectively in any electrical project. Why You'll Love It Safe from electric shock: The NCV high sensitivity probe ensures that contacting the socket is not necessary to detect current. Hence, it keeps you safe from electric current. In addition, the insulated body of the tester pen adds an extra safety level to it. Identification of zero or fire line: The distinct color bars on the pen clearly indicate the wire is live or zero. The red light on the tester means the detection result is a live line and the green light indicates the detection result is zero. Breakpoint finder: This tester pen is efficient and quick to find any breakpoint in the circuit. You’ll be able to repair the breakpoint and keep it safe for everyone around. Portable design: The pen is highly comfortable to hold even for a long duration. You can also conveniently clip it with your jeans pocket and take it with you everywhere. Long-lasting: The tester pen has 2 built-in 15V AA batteries that offer detecting 1000 times with the pen. Features Non-contact current test pen Insulated body makes it safe to use Detects breakpoints in circuits Identifies zero or live wire Color screen display for less human error