X3 Pack of Yale EF-3PETPIR Easy Fit Alarm Accessory Pet PIR Motion Detectors, White, Motion Activated, Pet Friendly Accessory for SR & EF Alarms, 868MHz technology The Yale Pet PIR Motion Detector Sensor Pet Friendly for SR & EF Alarms 868MHz EF-PETPIR is a state-of-the-art security device designed to protect your home while accommodating your furry companions. This advanced motion sensor uses passive infrared (PIR) technology to detect movement and trigger alarm systems, ensuring enhanced security for your premises. With its pet-friendly design, the Yale Pet PIR Motion Detector Sensor allows your pets to move freely without triggering false alarms, providing reliable protection without unnecessary disturbances.