In the UK, that makes it cheaper than the Philips Hue PIR-based motion sensor, which is crazy. And while non-Zigbee, you could easily integrate it into an exist

In the UK, that makes it cheaper than the Philips Hue PIR-based motion sensor, which is crazy. And while non-Zigbee, you could easily integrate it into an existing Hue setup. It enables you to add more intelligence to your home automation because not only can it detect motion, if you offload the processing, it can enable object recognition. So your cat doesn't trigger it. Or triggers a different action. Because you can control the IR leds and filtering, you can mount it in a dome for ultra-cheap external pan and tilt with an external IR illuminator.