Description : The difference with SONOFF PIR2 RF motion sensor is that PIR3-RF has a small and compact size, easy to be used in almost any position to detect the movement. SONOFF PIR3-RF motion sensor can detect and report motion. When used for your home security system, it can detect the movement within 8M and help identify whether a human or pet is moving around inside your house, and your mobile phone will receive an alert notification. Connect SONOFF camera and you can view who is the intruder. When incorporated into your smart lifestyle, the sensor triggers your light on or off after connecting with SONOFF RF Bridge. You can set a scene that the hallway light is turned on when you enter the door. With the universal joint, the sensor can be flexible to rotate a full 360°horizontal angle and 90°vertical angle which allows you to adjust the sensor into an optimal angle to view everything in your home (The sensor doesn’t move on its own based on your motion). Another convenience for your home is that you can use the sensor for a position where the movement is not easy to be detected via mounting it in the universal joint, and just rotate the universal joint head to get a wonderful detecting angle. Plus, you can directly stick the sensor on the surface of objects to detect the movement. Just choose one as you like. PIR3-RF has 2 working modes that alert and normal mode. In the alert mode, the sensor is triggered per 5s when someone enters the detection range. In the normal mode, the next alert trigger is activated if there is no motion detected within 1min after the previous detection. Note: 1. The PIR3-RF sensor requires SONOFF 433MHz RF Bridge to work. 2. The universal joint is not included, please purchase it separately. 3. This sensor doesn't include battery. Wave Your Hand, Start A Smart Life The reading time is a customized scene that is when you wave to PIR3-RF, the bed-room light turns on meanwhile the music starts playing. Two Modes, As You Choose Alert Mode(default): If motion is in the detection range, it can be triggered every five seconds. Normal Mode: The next alarm trigger can be activated (when detecting motion, it will be triggered) if there is no motion detected within one minute after the previous detection. *The default is Alert Mode, you can change it by long pressing the small hole on PIR3-RF. Always Receive Alerts In Time The sensor will send you a push notification immediately if detects motion. Detection Range It's recommended that the pinhole is installed downward for the optimizal detection angle. Universal Joint For Flexible Detection *The universal joint is not included, please purchase it separately. With the universal joint, 360° rotation detection can be realized. You can adjust the detection angle at any time to an optimum viewing level.