The bypass contact works for those times you want to open a door without making noise while disarming the system.
The Bypass Door/Window Contact is designed for use on doors that may need to be temporarily bypassed to serve as an entry and exit path to an armed zone.
There is a discreet hidden push button integrated to the top of the case that allows a user to activate the bypass feature—to open and close the door once without having to disarm the alarm panel. A special coded message is sent to compatible receivers that can log this local user bypass event. An integrated LED indicates to the user, the state and status of the bypass feature. For higher security, the bypass push button can be disabled and the contact can be used as a micro sized door window contact without the local bypass feature. A message is sent when the magnet is moved away from the contact and another message is sent when the magnet is replaced near the contact again. It communicates with a 2GIG control panel at the 345Mhz frequency. The contact is equipped with a cover tamper to notify the user if the device has been tampered with. (2GIG panel firmware version 1.14 or higher is required to log the bypass activity.)