Elecbee 7芯拖车测试器12V汽车电阻7针插头插座连接器记录仪

Exactly what I needed for testing my caravan's 7-pin socket. The waterproof design gives me confidence during rainy seasons. Solid build with copper contacts conducting perfectly.

Good quality connector, fits European standard trailers without issue. Injection-molded body feels durable and the engineering plastic insulator seems reliable.

Used it for a few weeks now—no corrosion or connection issues. The waterproof feature really works, even after exposure to heavy dew and light rain.

Does the job, but took a bit to understand the pin layout. Once set up, the resistance testing was accurate. Build quality is decent for the price.

Perfect replacement for my old tester. Copper contacts ensure strong connectivity, and the molded design feels rugged. Highly recommend for 12V trailer checks.