Quickly trace live and neutral wires, hunt down broken circuits, and confirm voltage on cars, trucks, and low-voltage electrical systems with this compact circuit tester pen. It combines a cone-shaped probe with an LCD digital display and a green/red dual-color backlight so you can read results at a glance, even in dim engine bays or tight fuse boxes.
Built for everyday diagnostic work, the tester delivers real-time detection with intelligent sound and light alarms, making electrical inspection faster and safer. Whether you are a professional mechanic, an auto electrician, or a DIY enthusiast working on 6V, 12V, or 24V systems, this pen-style tool slips easily into a pocket or tool bag and is ready whenever a fault appears.
Use this tester to check fuses, relays, wiring harnesses, sockets, and connections on cars, trucks, motorcycles, and other low-voltage equipment. It is also useful for tracing breakpoints in cables and confirming whether a wire is live before you begin repairs.
Ideal for auto mechanics, electricians, technicians, and home DIY users who want a simple, reliable way to inspect electrical circuits.