We buy FCL-918E lock from your company and buy the card from another factory. But there are dozens of cards can not reading.

Hello, we produce FCL-918E with a very strict production and testing process. we strictly carry out 125 KHZ frequency, But there is a price competition problem on the market leads to a lot of inferior card. Non-standard material with different quality result in the card can not reading. we strongly recommend clients should purchase qualified cards via formal channels , so that can avoid to appear those problem.