Lock Transmitter for Remote-Control Electronic Lock

This external transmitter for the remote-control electronic lock opens the lock using a code with four to eight digits; it locks again when the code is re-entered, or can be programmed to lock automatically ten seconds after closing. One transmitter can operate any number of locks in a 15' radius, and each lock can have two codes; individual users can set their own codes for single locks, while one master code can open multiple locks.