If you're worried not just about home security but also about turning lights on and off with motion, the SONOFF PIR3-RF might just make you feel wonderful. This motion sensor is an incredibly useful smart device that you can place anywhere in your house to detect motion and turn on and off. In other words, if motion is detected, the sensor will instantly send a single notification to your phone. To turn on WiFi devices, you can attach the sensor to it. One example of this would be to program your living room light to come on automatically when you enter the room. With the new camera feature, you can record video footage earlier and be aware of who is approaching your house.