The Qolsys QS1135-840 IQ Wireless S-Line Mini Door and Window Alarm Sensor is an ultra-compact, encrypted sensor that securely connects to your IQ Panel, offering up to eight years of battery life. With intelligent features such as custom notifications, automation support, and a sleek design, this sensor is perfect for securing doors and windows while integrating seamlessly into your smart home system.

• Encrypted S-Line technology ensures secure communication with your IQ Panel while supporting legacy 319.5 systems

• Easy to mount on doors or windows with adhesive, offering flexibility in installation

• Sends alerts if moved more than 1” and supports automation rules like turning on lights or adjusting the thermostat

• Powered by two 3V CR2032 batteries with a battery life of up to 8 years

• Includes a built-in tamper switch and allows custom sensor naming, unique chimes, and voice prompts