All central control panels have some form of output or another. Most of them activate an internal and/or external hooter. Some can also be equipped with relays that can be controlled from the Control Panel itself. These relays can allow you to perform many functions such as AC/Heater control or as a means of interfacing with a home automation system.

The output of control panel may be given to a Help intimation device such as an Telephone Auto Dialer.