The QS1135-840 IQ Mini DW-S stands out as an ultra-compact, encrypted sensor designed for seamless integration with the IQ Panel 2. Its encrypted S-Line technology ensures secure communication while supporting legacy 319.5 systems, enhancing backward compatibility. Offering versatility, it easily installs on doors or windows, providing intelligent notifications and supporting smart home rules. With up to eight years of battery life and an innovative design for extended range, the IQ Mini DW-S guarantees reliable and efficient security, customizable to individual preferences through Alarm.com integration.