The D5-X is a Wireless Fingerprint DIY Lock Kit for home use.
It includes Wireless Fingerprint Keypad (metal, waterproof) + Wireless Lock + 2pcs
Remote Transmitters . 433MHz Rolling Code of encryption algorithm and the split design guarantee higher-secure.

The SK7 is S4A single door wireless access control, consists of a wireless & waterproof keypad , a mini controller _x000d_ and a wireless exit button. TEA + Rolling Code of encryption algorithm and the split design guarantees higher-secure.

The SK8 is a single door wireless access control, consists of a wireless_x000d_ & waterproof keypad , a mini controller and a wireless exit button._x000d_ TEA + Rolling Code of encryption algorithm and the split design guarantees higher-secure.