Features: 1.Multifunction: 7 way Trailer wiring tester, 6 LED lights, can be used for tail, brake, reverse, turn signals, brakes and auxiliary power. 2.Portable: Blade trailer wiring tester, small size, can be easily put into glove box, pocket or tool box. You can use it anytime, anywhere. 3.Easy to Use: You only need to plug the wiring tester into the 7 blade RV Trailer plug, suitable for most vehicles with a 7 pin vehicle sockets. 4.Durable Material: The RV blade connector tester is made of ABS material, it is designed to be weather proof and not easy to be damaged. 5.Practical: It helps you save the high cost of going to the repair shop, allows you to quickly identify and repair the circuit problems of the socket. Specification: Item Type: Blade Trailer Connector Tester Material: ABS Plug Type: US Plug Application: Trailer, RV PackageList: 1 x Blade Trailer Connector Tester Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.