Important: This door and window alarm is an independent product, it is not compatible with Tiiwee home alarm system. This can be used to quickly secure windows and doors in homes, garages, campers or caravans. This alarm makes it possible to equip each door or window separately. Deters intruders and secures your doors and windows with a loud 120dB alarm. Multiple operating modes including main alarm mode and input chime mode Pack of 2 alarms in an elegant and discreet design - High quality product - installation in seconds with the included adhesive tape - Easy to use