Light Switch Sensor

A light switch sensor is a device that is used to detect the presence of a person in a room or area. It is usually installed in a doorway or other entryway, and when someone enters the area, the sensor will detect their presence and activate the lights. This is a great way to save energy, as the lights will only be on when someone is present. The sensor can also be used to turn on other appliances, such as a fan or air conditioner, as well as to trigger alarms or other security systems. Light switch sensors are a great way to add convenience and security to any home or business. They are also relatively inexpensive and easy to install, making them a great addition to any home or business.