@kkossev Thanks for the suggestion! I have done this before (amongst other things) but I tried it again now with two of them and it didn't work. I re-paired the device with it sitting right next to the hub.
I have 7 of them that don't work so if you want one to test I'm happy to send 
An alternative way to bring these sensors locally to Hubitat is via Tuya Matter Bridges, but again there is no guarantee. The vibration sensor that I have is exposed via the Tuya Matter GW, however it is unclear whether it will work for your devices or not.
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An update for anyone interested:
It seems the Moes branded ones ("fkxmyics") have about a 55% chance of working (10 out of the 18 I've bought worked), and other non-"Moes" ones ("xsjsnzhz") have about a 63% chance of working (5 out of 8).
The last batch I bought of non-"Moes" ones was from this seller and 4 out of 6 of them worked (67%), and they accept refunds for any reason, so they seem the best option. Buy a third more than you need and refund any that don't work!
A further update 10 days later:
I spoke too soon! Unfortunately only two out of six of the last batch I bought are now working. Two sensors that were working fine previously (tested for a full day) stopped working after I left their batteries out for several days, then turned them back on again. No matter what I try and how many times I try re-pairing they activate continuously, even when not paired.
So it seems that a device that was working fine can develop this problem. If you have a working one, I suggest that you don't turn it off!
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I will look at this issue later.
Will add some better diagnostic - whether the device is online and whether the sensitivity settings are really accepted and confirmed. Maybe the device must be configured again at the time of re-joining the Zigbee network when the batteries are re-inserted.
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@Owen now there is a dedicated thread for the Tuya driver :
One of the addition in the latest version is that the sensitivity parameter, as returned from the device is shown in the Current States :
This is the actual sensitivity value, as returned by the device itself.
Let me know if your sensors are returning back the configured sensitivity or not.
You need to activate the vibration sensor at the same time when you click on the 'Save Preferences' button.
