The QS1133-840 IQ Wireless S-Line Long Range Door/Window Alarm Contact excels in protecting your home with advanced features. Boasting encrypted S-Line sensor technology, it ensures secure communication with the IQ Panel while offering support for legacy 319.5 systems. With easy mounting using adhesive, it alerts the IQ Panel if moved more than 1", making it versatile for doors, windows, or as a "Safety Sensor" for various purposes. Utilize customizable chimes, unique names, and interactive app rules for personalized notifications, ensuring a proactive and personalized security experience.