[BETA] Tuya Zigbee mmWave Sensors

Trying to understand this presence sensor.... there has been no activity in room for almost 3 hours but it still says motion is active.
It seemed like some of the drivers had a timer that would change active to inactive...does this do that at all ?
How does this sensor handle sensing a person that is NOT moving (i.e. sleeping).... there is no "presence" output just a motion output.
I want to turn off the ceiling fan if no one is in the room and its during the day... i was hoping this did detect presence and not just motion...
Also there is settings for alarm which I've enabled but I've never heard a sound...do they make sounds?
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