While PIR sensors are inexpensive, radar technologies are decreasing in cost and becoming more compact and simple to design. Radar solutions can range from simple motion detection to complex imaging ...

(Passive InfraRed sensor) A device used to detect motion by receiving infrared radiation. When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal.

Smart home sensors don't just help keep you safe -- with the right tricks they can spot pest activity and entrances, too.

Are you curious about the fascinating world of smart home technology? Are you eager to understand the inner workings of those ...

There’s a huge market for 433 MHz alarm system hardware out there, from PIR motion detectors to door and window sensors. If you want to put them to work, all you need is a receiver, a network ...

this DIY motion trigger for a DSLR is a quick and easy build, and probably loads more fun. The BOM on [Jeremy S Cook]’s build is extremely short – just a PIR sensor and an optoisolator ...

Blue Line Gen 2 Motion detectors include the passive infrared (PIR), the Quad PIR detectors and the TriTech ... assuring no coverage gaps up to twelve meters (40 feet) away from the detector.

Unique clip-on pet pattern mask. Adjustable 1, 2 and 3-pulse counter virtually eliminates false alarms. Sealed optical chamber protects sensor from insects and air currents. Temperature compensation ...

Our Top PicksMost Versatile Motion Detection CamerasLorexKnown for their well-built, well-designed equipment, Lorex leads the ...

As the demand for intelligent automation grows alongside AI and IoT, PixArt Imaging proudly introduces its latest innovation, ...

By Quentyn Kennemer, a writer who helps The Verge's readers save money by surfacing the best tech deals and presenting the latest product recommendations from our experts. He has covered tech and ...

Your system can be tailored to your needs, and you can choose from wireless door contacts, PIR motion sensors, a wifi camera and a video doorbell. Each package comes with a bespoke quote.