Ordered one from Aliexpress on April 8, it arrived today. Beating their promise of June2. Hooked up a usb cable and it powered up. The blue LED could be seen. After pressing the ACTION button a few times it showed up in my Zigbee2MQTT. Control panel. I could rename it easily.
It initially said unsupported but that changed after a few minutes and Zigbee2MQTT said it was supported and reported it as a Fantem ZB003. So time to start playing around with it. I can see Humidity, Illuminance lux, Occupancy, and temperature. There is also something call Tamper.
There are controls for Humidity calibration, temperature calibration, illuminance calibration, reporting time and reporting enable, and PIR enable.
Looks like I got a lot to learn