Unlike infrared optical sensors that use an LED transmitter and IR receiver, the PIR emits nothing. As its “passive” name suggests, it responds only to infrared energy radiated by the object ...

This project uses PIR (passive infrared) sensor to detect the change in radiation, this can be use on lighting control, temperature control, and motion detection since all objects with temperature ...

Motion sensing technology has made huge advances since the introduction of PIR (Passive InfraRed) and MW (MicroWave) technologies.

Like its 24-volt cousin, the 12-volt lamp is activated using a passive infrared motion sensor located in the lamp body, according to the company; the sensor is calibrated to recognize the heat ...

The new Aqara Motion and Light Sensor P2 supports Thread for the first time in an Aqara motion sensor on top of Matter support for HomeKit.

Passive InfraRed sensors (PIRs) are electronic devices which are used in some security alarm systems to detect motion of an infrared emitting source, usually a human body.

Outdoor light motion sensors can add a healthy level of security to your home. Here's how to set them up.