Fibaro Temperature Sensor for The Heat Controller, FGBRS-001, White

I've built a home heating and hot water control system using Fibaro Home Center 3 and these Fibaro Heat Controller TRVs. The concept of using an external temperature sensor works brilliantly and avoids the constant issues I found with other systems that measure temperature from the TRV that is right next to the radiator!To get the most benefit from this system you need the Heat Activator plugin which is poorly advertised and poorly documented. It implements heat on demand to allow switching on a boiler and/or opening a zone valve when the TRV demands heat. In fact, the whole system is poorly documented and I've found it easier just to play with the configuration than try to read documentation and help files.Overall this kind of system offers far more flexibility than a proprietary system such as Hive (which I had before) and Nest. Fibaro is z-wave and supports devices from many different manufacturers.The TRV itself looks great and has a nice coloured ring that changes from blue to green, red then purple as higher temperatures are selected - much easier to see than the small LCD number display on other devices.I like this a lot, but installation will require a lot of experience with this type of system, or help from a trained installer.