PIR Motion Sensors

• Computer Centre (Smartpower)
• Kolkata

PIR Motion Sensors

Smartpower manufactures PIR Motion Sensors in three types: Ceiling mounted smart switch, wall mounted smart switch, and smart switch with halogen model. Almost any area where people only occasionally walk or move through and which is not required to be continuously lit could benefit from the installation of a PIR sensor. Some examples are hallways, paths, car parks and garden areas. All PIR sensors detect changes in infra red radiation, in the form of heat emitted by a number of bodies including people, cars and, to a lesser extent, dogs or other small animals. The bigger the body, the more infra red radiation is emitted and the easier it is for a PIR sensor to detect. The field of view is the area in which changes in infra red radiation can be detected. The field of view can alter with changes in temperature and the size of the heat source.