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 ...

Equipped with a PIR sensor and built-in AI ... Users can always get a clear view of what is happening at the front door, all in outstanding quality thanks to the doorbell’s wide-range HDR ...

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 ...