Hi @FalconTech
As you can see above, I have both the Aqara E1 TRV and the Hive UK7004240 TVR’s running in HA. The Hive valves are re-badged Danfoss Ally 014G2461 TVR’s. The Danfoss Ally TRV’s don’t seem to be available in the UK, I suspect they are only being marketed through Hive.
If you do a search on this forum, you will find people using an external temperature sensor with the Aqara and other valves in conjunction with ‘Better Thermostat’ see here:
I personally didn’t have much success with this setup. The room I was using it in fluctuated in temperature by +/-2 C, at best YMMV.
On the other hand, I have had a really good experience with an external temperature sensor and the Hive valves. The same room stays within 0.5 C of the setpoint. I think this is down to using an external temperature sensor and the valves inbuilt PID (Proportional Integral Derivative) controller. If you are interested in how this works, read this document:
I have setup the Hive TRV’s using Napalm’s excellent (ZHA, Zigbee2MQTT - Danfoss Ally send external temperature to TRV) Bluprint. See here for more information:
Hope you find this a useful starting point.