Trailer Plug Socket 7 Pin Car Truck Test Tool Tester Wiring Circuit Light New US Europe

100-499 Pieces
>=500 Pieces
Min. Order
100 Pieces
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Company Information

Cixi Xinzhiran Electronics Co., Ltd.

CN Manufacturer
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US$ 10,000+
5 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
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Quick Details

Port: Ningbo or Shanghai
Payment Terms: T/T
Supply Ability: 30000 Piece/Pieces per Month We delivery Trailer Tester after 20 days.
Place of Origin: Zhejiang China
Brand Name: SINZERO
Model Number: TS05T-7
Power: Electronic
Description: Standard Trailer Truck Parts 12V 7Pin Trailer Socket Tester
Use: trailer, towing, caravan, Towbar
Voltage: 12 V
Material: Plastic
Contacts: Screw Contacts
Weight: 0.185KGS
Color: Black
Certificate: CE
Application: Trailer plug wiring
Warranty: 1 Year
Packaging Detail: Packing Trailer Tester with pe bag.


Product Description
trailer tester
17.5*5*4 cm
PE bag




Material:ABS+Brass Pin
Work voltage:12V
7 pin plug (Brass Pin)
Product size:18x5.5x4 cm
Color :Black  


Product Description:


Tester for 7-pins plug and socket connection 
This tester has one side to connect the 7-pins plug of a trailer and another side to connect the 7-pins socket of a car. This tester indicates quickly if a failure concerns the wiring of the car or the wiring of the trailer. How to test the connection of a: 
Trailer (can also be a caravan or bicycle carrier) 
1. Put the plug in the connection of the tester. 
2. Press the yellow button on the side of the tester. 
3. If the wiring is good, all the LEDs light up. the function of each LED is (acc lso 1724): 
   1.) left hand indicator (yellow); 
   2.) foglight or 12V (blue); 
   3.) mass (white); 
   4.) right hand indicator (green); 
   5.) right rearlight (brown); 
   6.) left brake light (red); 
   7.) left rearlight (black). Attention: The pin no 2 can be used either for a warning foglamp or a permanent 12V connection. 

4. If a LED doesn’t light up, it is because the corresponding wire is defective. If all the LEDs don’t light up 
Car, camper 
1. Put the tester in the socket of the car. 
2. Press the yellow button on the side of the tester. 
3. If the wiring is good, all the LEDs light up. Do again steps 4 as previous. 
You can also test the functions of each pin of the socket. 
1. Switch on the left hand indicator (after switching on the ignation key). 
2. The corresponding LED must flash with the same frequency. If not, left hand indicator wiring is defective/broken. 
3. Repeat steps 1 and 2 for the right hand indicator, rearlight, foglight and stoplights. With a +/- 4 m extension cable, you can test the functions form the driver’s seat more easily.


The fuses will break. NB If the vehicule is equipped with an electrical foglight interruption relay. This one has to be tested with a 21 wattbulb.




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1. Q: Are you a factory or Trade company?

     A: We are manufacturer, Welcome to visit our factory at anytime. Thank you.


2. Q: Do you accept OEM or Odm?

     A: Certainly. We do accept them.


3. Q: Can I take some sample for test firstly ?

     A: Yes, we do provide you sample.


4. Q: What is the MOQ?

     A: Small MOQ is availabe, just contact us with no hesitate. Thank you.


5. Q: Can we stamp the LOGO on the item?

     A: yes, pls just send the picture of the logo and your requirements to us.


6.How to make an order?

1.       Sample approval.

2.       Client make 30% deposit t/t in adavance after receiving our PI.

3.       Client approve our pp sample, and get the testing report if any necessary

4.       Arrange shipment.

5.       Supplier arrange necessary documents and send copy of these documents

6.       Client effects balance payment.

7.       Supplier send original documents or telex release the goods

8.       Quality warranty for 60days after shipment .