9181 Wireless 12V Towing Circuit Tester
A diagnostic kit that allows the user to check and test the vehicle tow socket functionality while sitting in the vehicle. The wireless design makes it perfect for one-person operation, allowing for quick and efficient checks without assistance.
- Works with 12V vehicle systems (for 24v vehicles, please see Laser Part No. 9179).
- Designed to work with both conventional & CANBUS systems.
- Works with both 7 & 13 pin systems.
- Suitable for 12V car & van towing systems. Ideal for owner drivers of tow cars, camper vans, caravans, trailers & race support vehicles.
- Supplied in a soft-shell case for storage.
List Price: £88.90 ex VAT £106.68 inc VAT
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Press Release
Laser Tools 9181 wireless 12V towing circuit tester — one-person tow-socket diagnostics
New to the Laser Tools range is this Wireless 12V Towing Circuit Tester (part number 9181), a compact diagnostic kit that lets a single operator check a trailer or caravan tow socket while seated in the towing vehicle. Designed for modern 12V tow systems, the wireless design removes the need for an assistant — speeding up checks and simplifying fault finding for workshops, recovery crews and owner-drivers alike.
Faulty tow sockets are a regular cause of breakdowns and safety incidents. The 9181 is built to streamline the routine verification of trailer lights and power circuits: connect the tester to the vehicle’s 7-pin or 13-pin socket, stay in the cab to operate the vehicle lighting and signalling, and quickly confirm which outputs are live, if earth/return is present and whether the socket is functioning correctly.
Key benefits:
- True one-person operation: wireless functionality lets you sit in the towing vehicle to operate lamps and indicators while the tester monitors the socket. No assistant required.
- Works with conventional & CAN-bus systems: designed to accommodate the signalling behaviours of both older and modern vehicle architectures.
- 7-pin & 13-pin compatible: checks the most common trailer/caravan socket formats.
- Fast fault isolation: speeds up identification of missing feeds, poor earths, blown bulbs, or wiring faults before you tow.
- Ideal for multiple users: owner-drivers, caravan owners, race support vehicles, recovery operators and mobile technicians will all find it useful.
- Compact kit: supplied in a soft-shell case for neat storage and easy transport.
Typical checks the 9181 helps with:
- Indicator and brake-light feed presence.
- Tail / position lamp output.
- Fog / reverse / auxiliary power pins.
- Permanent live / switched feed and earth return integrity.
Practical advantages for workshops & mobile techs:
- Reduce job time and call-outs by quickly proving socket faults at the vehicle.
- Minimise repeat trips to the rear of the vehicle—operate controls from the driver’s seat and perform the complete test solo.
- Useful for pre-trip checks by caravan owners and fleet operators, improving road safety and reducing on-road failures.
Usage note: Always follow vehicle and trailer manufacturer procedures when testing electrical systems. The 9181 is intended for 12V systems only.
The Laser 9181 Wireless 12V Towing Circuit Tester is available now through Laser Tools distributors and online stockists — a simple, effective way to make tow-socket checks fast, reliable and truly one-person.
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