Digital Door Lock

Application
 Three ways of opening
The door can be opened by three ways:password, card key, and emergency key.
Voice Function
A Pre-set voice play with all operation.
Re-registration of key
If you lost a key, you can invalidate the lost key by re-registering all remain card keys.
Heat Sensor Function
In case of fire heat detection sensor is in action and the door is automatically open with the alarm sound.(Heat detection temperature 60