Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting ... and of course, thunder. The light comes from a whopping 10-watt, 12-volt power LED.

Third Reality has introduced the Motion Sensor R1, a device designed to improve motion detection in smart homes. This is a ...

When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR sensors are used ... back a radar signal or transmit light to a photodetector in the ...