PIR Motion Sensor works on infrared light to detect whether an object has in or out. This is also known as energy saver because it senses the object and after turn on or off switches of premises. The main advantage of this sensor is small, inexpensive and easy to use and also consume low power. That's why mostly used in home appliance and gadget. There are many application of PIR Motion Sensor like Basements Covered parking area Shopping malls Offices / Conference Room For garden lights and Lift Lobby