I looked at Tuya and bought their water sensor, both the motion and water say, "needs tuya hub", however I have the water sensor working on Home Assistant, but it did not work on ST or HE, but imagine Mike can probably get it to work.
The Tuya motion sensor looks huge, I would suggest looking at Iris for 12.99 off ebay I would get the Iris motion, confirmed to work and not fall off.