It looks like it’s going to take quite some code changes to make this work rather than my simple changes to the data type. I copied the device handler code changed all the metadata bits mentioned including and the type from INT to float (just to see if that could work) published it and assigned to my device, but despite this still no changes seen in the app. So unless there are further parts in the code to change or it needs some much more significant chunks added. Reading some other threads for different devices it doesn’t look so simple to achieve with basic changes, and certainly beyond my basic coding.
So if anyone can work out how to change the Samsung MultiSensor DH code to produce decimals to the app, I’m sure it’ll be very popular, there are many users looking for the same!