OCCUPANCY SENSORS| PIR | ULTRASONIC | MICROWAVE | HYBRID
What is Occupancy Sensor? Occupancy sensors are the motion sensing devices. It mainly works on infrared, ultrasonic and microwaves. It activates the connected electrical devices (fan, light, etc) when it senses motion and deactivates them when it seizes to sense motion. Occupancy sensors are sometime also called “presence sensors” or “vacancy sensors…. Read more »