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Socket and trailer tester 13pin STU trl22
Socket and trailer tester - 13-pin connector, power supply 12V, LED status indication for each circuit for immediate fault location, testing both the vehicle socket and the trailer plug, internal battery charged via USB-C with no need for external batteries, compatible with passenger cars, motorhomes and other vehicles with a 13-pin socket
In stock 6 pcs
Expected shipping:
12.10.2026
Regular price
€14,23
Unit price
/
Unavailable
STUALARM | SKU:
07750239
Product description
ento tester with LEDs tests all the functions of the socket and plug of the car and trailer. An LED indicator will show any problematic connections.
The tester can be connected separately directly to the trailer plug and tested.
In addition, you can check the functionality of the socket in the vehicle, but this requires 2 people to press the pedal.
Simple and fast - you connect the tester to a socket and a plug.
This 12 volt tester immediately shows the fault in the lights and wiring of vehicles and trailers.
Wide compatibility with 12V trailer lights The trailer lights can be used for cars, RVs or other vehicles with a 13-pin socket/plug.
No batteries are required and the internal battery can be charged via USB-C.
Note: it measures the function of the towing device socket as well, which have their own control unit (CANBUS).
Testable features:
turn signal left/right
brake light
rear / tail light left / right
fog light
Package contents:
1 x Tester
1 x 3.6V built-in block lithium battery (rechargeable)
1x USB-C cable
The tester can be connected separately directly to the trailer plug and tested.
In addition, you can check the functionality of the socket in the vehicle, but this requires 2 people to press the pedal.
Simple and fast - you connect the tester to a socket and a plug.
This 12 volt tester immediately shows the fault in the lights and wiring of vehicles and trailers.
Wide compatibility with 12V trailer lights The trailer lights can be used for cars, RVs or other vehicles with a 13-pin socket/plug.
No batteries are required and the internal battery can be charged via USB-C.
Note: it measures the function of the towing device socket as well, which have their own control unit (CANBUS).
Testable features:
turn signal left/right
brake light
rear / tail light left / right
fog light
Package contents:
1 x Tester
1 x 3.6V built-in block lithium battery (rechargeable)
1x USB-C cable
