By taking advantage of this discount bundle. you can increase security at entrance doors to the very highest level. The bundle includes a tamper switch. I/O module and security relay. The individual components of the bundle can also be ordered separately. The tamper switch detects if the intercom is opened or the upper frame is removed. The module is installed in a special location and there is no need to set aside a separate slot for it. The I/O module contains two logic inputs and two relay outputs for the integration of various sensors and to control doors or other devices. The module is installed under a different module. i.e. there is no need to set aside a separate slot for it. The security relay is a simple add-on device which prevents unauthorised manipulation with the lock. It is installed between the intercom from which it is powered and the lock which it controls.
