The Ademco 5890PI Wireless PIR Motion Detector is a reliable and advanced security device designed to detect motion in your home. With its pet immune feature, you can rest assured that your furry friends won't trigger false alarms. The wireless connectivity allows for easy installation without the need for additional wiring. This model is lightweight at only 1 lb, making it easy to handle and transport. Upgrade your home surveillance system with this new open box Ademco 5890PI motion detector.