4 digit alarm control keypad

Posted on Feb 7, 2014    12544

This Keypad is suitable for the Modular Burglar Alarm. However, it has other applications. Pressing a single key will energize the relay. Entering the Four-Digit code of your choice will de-energize it..

4 digit alarm control keypad
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

New Circuits