Ajax Motion Protect PlusWireless pet immune motion detector with microwave sensor PD Wireless motion Detector with Microwave Sensor that notifies the owner of first signs of home or office intrusion. Designed for rooms with air conditioners, Fireplaces and where there is a likelihood of Light flickering, glare and reflections. Detects human presence by temperature difference with background thermal radiation. The Microwave Sensor prevents false Alarms caused by complex