mmWave presence sensor

Search for mmWave presence sensor on Amazon and you get a device that looks like this:

image

Offered by 20+ different companies. Can't find a review on any of them. Has anyone been brave enough to try one?

There are a lot of comments about this thing buried in [RELEASE] Tuya Zigbee Multi-Sensor 4 In 1 (PIR motion sensors and mmWave presence radars)

Shortly - not recommended.

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Thanks. Somehow I assumed that with so many different "manufacturers".

I have added a link to blakadder review for the same device : Cheapest Tuya Human Presence Sensor Review | Blakadder's Smarthome Shenanigans
It confirms my observations - do not buy.

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