To do this, you simply have to insert the tester into the socket or plug to be tested, press the test button and a clear diagnosis is made via the LED display. This adapter is a lighting and cable tester for trailers and towing vehicles.
eBay
PUJIMAX Wall Socket Adapter With 1 Socket, 1 USB A Ports And 2 Type C Plug, 4 in 1 Multiple Wall Plug Adapter For Home, Office
Aliexpress UK
Converts the 13pin socket on your car to the 7pin female socket. Suitable for trailer. Pin1 Yellow L / H Direction Indicator. Pin4 Green R / H Direction Indicator. 1 Trailer Plug Socket Adapter. Pin1 Yellow Left Indicator.
eBay
UK To EU Euro Electric Travel Adapter EU Plug Adapter Socket Electrical Plug Converter Outlet UK AC Power Wall Charger Sockets
Aliexpress UK
1x Caravan Towing Conversion Adapter Lead. 13-pin (Vehicle) to 2x7-pin 12N and 12S (Caravan) Adapter. 48 Lattice All Gels Nail Polish Case Holder Organize Storage Display Rack Clear. We're looking forward to dealing with you!
eBay
3pcs US Italy UK EU to AU Plug Adapter Universal Travel adapter Australia New Zealand Travel plug Power Converter Wall Charger
Aliexpress UK
13 pin plug (car) to Twin 7 pin N & S Type Socket (trailer / caravan). 1 x Conversion Adaptor without cable. Plug and play design, insert into socket, twist and lock, no need to change any cable. Used on newer cars with a 13 pin plug on the towbar.
eBay
Travel Adapter USA Adapter Europe Germany Plug, EU to US Travel Plug Power Converter Wall Socket for Canada Japan Thailand
Aliexpress UK
🚚7 Pin to 13 Pin Plug Adapter – 12V Towbar Trailer Towing Socket Converter | Waterproof. Connect your trailer or caravan quickly and reliably with this7 Pin to 13 Pin Socket Adapter. Versatile Compatibility – Converts a 7-pin vehicle socket to a 13-pin female trailer socket.
eBay
Car Cigarette Lighter Adapter AC 220V To DC 12V EU US Plug Converter Wall Power Socket Plug Adapter Auto Converter Car Accessory
Aliexpress UK
Power your caravan, trailer and truck. The adapter converts the 7-pin socket on your car into a 13-pin female socket. 1 x 7 to 13Pin Towing Socket Converter(Other accessories are not included). Transfer electronic signal light from vehicle to trailer.
eBay
US To EU Plug Adapter CN US China American To EU Europe Russia Brazil Travel Power Adapter 2Pin Plug Type C AC Converter Socket
Aliexpress UK
【Fast and easy connection】 It works as it should and the eyelet is ideal to hang up the cable. The spiral cable can be moved very easily and does not bother anywhere. 【Universally usable】 Ideal for car trailers, caravan, caravan, bicycle carrier, turn signals left, turn signal right, driving / tail light left, driving / tail light right, rear fog lamp, brake light, reversing light.
eBay
US/EU/AU Power Plug Adapter European Socket EU To US Plug Adapter Electric Charger Socket Japan China Americana AC Converter
Aliexpress UK
13 pin plug (car) to Twin 7 pin N & S Type Socket (trailer / caravan). Brass electric shock: brass is used as a conductor, which is more conductive than ordinary materials. Plug and play design, insert into socket, twist and lock, no need to change any cable.
eBay
US Japan China Travel Plug Adapter European EU To US JP Power Adapter Electrical Plug Converter Sockets AC Charger Outlet
Aliexpress UK