The JFIND JF107 is a fast and reliable relay tester for vehicles, compatible with 12V and 24V systems. This tool checks the relays in the electrical installation of cars, trucks, or machinery.

The device connects directly to the vehicle's battery using insulated crocodile clips, while the relay is placed in the correct socket (4-pin or 5-pin) and the test is performed with the press of a button.

• Compatible with 12V and 24V automotive relays
• Relay testing with 4-pin and 5-pin sockets with various pin combinations
• Two-color LED for results: GOOD (green) / BAD (red)
• Easy battery connection via insulated crocodile clips
• Automatic testing with one press of the TEST button – opens/closes the relay 10 times for accurate verification
• Compact design with comfortable grip and durable case
• Suitable for cars, trucks, machinery, and other 12/24V applications

Its ergonomic design, comfortable grip, and flexible cable facilitate use both in the workshop and directly in the engine room. Ideal for mechanics, automotive electricians, and DIY enthusiasts who want quick diagnostics of starting, lighting, air conditioning circuits, or others controlled by relays.