Allows discreet monitoring of door/window openings and closures. Easily pairs with Yale Sync Smart Home Alarm and mountable on any door or window frame. Features a 200m wire-free range and a battery life of up to 2 years. Sends low battery notifications...

Allows for discreet monitoring of doors, gates, entries and exits. Suitable for domestic or commercial properties with a long battery life. Features a highly extensive and reliable communication range. Mountable on metal surfaces. Contact has a powerful...

Wireless and easy to pair with the Yale Sync or Burglar alarm systems, extending the system to fit specific needs. Will activate the alarm when a door or window its connected to is opened. Anti-Tamper Dependent on Local WiFi Wireless Range 200m Wireless...