RFX433 Door Sensors EV1527 - How to interpret items?

Hi there,

I’ve got some of these cheap chinese 433Mhz door sensors:

They show up in OH with the following channels:

Open/Close is reported as “ALARM/MOTION” in the state channel.
If I open the cover it triggers ALARM as well.
Battery status is also show.

Contact and Motion do not seem to provide anything useful though…
What is Motion and Contact for and how can I use it?

I also have some cheap 433 devices, yet yet to figure out which of the rfcomm protocols to enable, they (seem) to not work so well with more protocols turned on.

the Motion channel is a ON/OFF for activity
you will need to make a rule to spot the activation

did there id hold, or does it change and your inbox fill up?