Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting and sound effects, including some spooky glowing and blinking red eyes, general cawing, and of course ...

But you need to buy additional hardware like motion sensors to make this “magic ... or superior” to passive infrared sensing (PIR) tech, which is traditionally used for motion sensing.

a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ultrasonic welded case is a small PCB and a Fresnel lens on the inside of the top cover, and a small PCB for the ...

The wireless DUAL TEC® motion sensor provides faster and more reliable detection using K-band microwaves to quickly verify the PIR signal prior to any alarm decision. Because K-band operates on a ...

When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR sensors are used for applications such as automatically turning on lights when someone ...