We have a lot of choices when it comes to motion sensors, but if you want a Thread-compatible model, the list shortens considerably. The good news is that this list grew by plus one today with the release of the Onvis motion sensor SMS2, which replaces their now outdated Bluetooth model with Thread. The new motion sensor has the same design as its predecessor, although fortunately the logo on the front has been significantly reduced in size. The SMS2 also includes the temperature and humidity sensors, as with the previous iteration. That's not the only improvement though, as in addition to the upgrade to Thread, the SMS2 now also includes a basic light sensor, and unlike many motion sensors you can create automations to disable the motion detection based on other devices, time of day, or as part of a larger scene. This is initially done in the Onvis app as a scene, which is then exposed to HomeKit for use as a standard scene or as part of an automation. Onvis S4 Smart plug (EU, US, UK) The SMS2 is the latest product from Onvis to join the Thread range of products including the contact sensor CT3, the 5 button smart switch and their S4 smart plug (in the EU, US, and UK versions), with the plugs being Matter over Thread, as opposed to HomeKit over Thread for the rest of the lineup. There's talk of releasing a Matter over Thread version of the SMS2 in the future, but for now it's exclusive to HomeKit. You can buy the SMS2 now for US$34.99 on Amazon.com and UK£34.99 on Amazon.co.uk, and although it's also on Amazon.de, the release date is listed as December 20 - a last-minute Christmas gift, maybe?