7 pin flat plug for use with the trailer end. These sockets make use of LED technology. When connected, it will test the electric circuit from the source of power to the trailer plug and will also assist in the detection of a cross wired connection.
A switch has been built in to allow the user the option to turn on / off, the LED lighting.
The socket will not detect broken or damaged cable from the plug to the application, Nor will it detect faulty globes or LED lights.
It is a great way to ensure there is no problem BEFORE the power gets to the trailer/caravan wires. 1 year warranty.
SpecificationsModel: 54645 Sam AllenShipping Weight: 100 grams.