This is two wireless heating zones being wired up
This is the Honeywell CMT927 it's a wireless programmable room thermostat only.
Cost is £125.00
This is the Salus IT500 it's a wireless programmable room thermostat that's also controlled via the internet.
Cost is £150.00
This is the Baxi NoCo void sensor, it interlocks with the boiler turning it off if activated
£350.00 inc. installation
Domestic Heating Engineers