The Secure SEC_SCP318 z-wave wall thermostaat works on batteries and has a seperate boiler actuator (included). The temperature can be set by the wheel or via a smartphone/tablet/webinterface. This gives you the ability to check and set the temperture of youre house whereever you are.
The desired roomtemp can be set via the rotating wheel on the SEC_SRT-321 or via a smartphone/tablet. When the desired temp is below the actual temperature, the zwave thermostat will sent out a puls to the boileractuator to activate the heating system.
Z-wave boiler actuator
De SEC_SSR318 is a z-wave Relaisswitch which can control loads up to 3A / 230 V. This device has the option to prograam 3 ON/OFF settings.