7 Pin Trailer Socket Tester With 12V Circuit Light Diagnostic Tool

Stop guessing where a broken trailer light might be hiding. This diagnostic tool plugs directly between your vehicle and caravan to show you exactly which wire is holding back. You will instantly see whether the fault lives in the car harness or the trailer wiring itself.

The compact black ABS body grips each terminal securely inside. Carefully machined copper needles pair with your system’s female pins to maintain steady contact. Simply slide the unit into place and press the yellow trigger button. Standard 12V power flows through each pin automatically. Watch the built‑in LEDs map out every signal from left and right turn indicators to running lights, brake circuits, and reverse lamps. A glowing LED means clean power delivery. An LED stays dark to flag a loose connector or cut channel.

Benefits & Quick Tips

• Pre‑trip safety check: Run through every lamp before hitting long hauls to avoid sudden signal failures.
• Glovebox ready: Pack the compact unit alongside documents for instant roadside diagnosis.
• Protect the contacts: Store the device in a dry drawer when not towing to keep the copper tips clear.

Specifications

• Compatibility: European 7‑pin N‑type trailer sockets
• Outer Shell: Durable ABS plastic with a frosted black finish
• Contact Points: Cross‑slotted copper needles for firm terminal grip
• Operating Voltage: Standard 12V automotive supply
• Dimensions: 20 cm × 6 cm × 5 cm
• Net Weight: 0.18 kg

Package includes:

• 1 × 7‑Pin Trailer Socket Tester

Important Reminders

• Cut power first: Switch off your vehicle before attaching or removing the unit to prevent electrical shorts.
• Dry hands only: Avoid touching exposed metal pins while testing live circuits to maintain safety.
• System limits: Designed strictly for standard 7‑pin trailer setups, not commercial eight‑wire configurations.

Language Support: English interface and functional labeling provided.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. Delivering dependable workshop tools and honest service at intercyprus.com since 2002.