How to find the device class of a specific sensor?

[kaws]

I have a motion/presence sensor. I know it is a binary sensor. Using this I should be able to find out what device class the binary sensor is.

I have tried motion, moving, occupancy, and presence. The state of the device does not show up in my dashboard.

I have other motion sensors which show up when I choose occupancy as the device class.

Is there an easy way to determine what device class this specific binary sensor is?

It is a Tuya Presence Sensor

[tom_l]

[kaws]

Thank you! This will make my life so much easier. I tried googling but was unable to find any topic related to this.