The Extension Kit enables you to control your hot water. It is also needed to connect the tado Smart Thermostat to your heating system if there is no room thermostat or if you have a wireless room thermostat. The Extension Kit works then as a wireless receiver for the heating system.

The Extension Kit can only be used as an additional product of the Smart Thermostat - Starter Kit.

Hardware
The Extension Kit allows you to use your Smart Thermostat with heating systems that don't have a thermostat or have a wireless thermostat.

Status LED
shows the current settings

Button
to connect with other tado devices

Setup
The tado Extension Kit
connects directly to your heating system via cable. The Smart Thermostat communicates via radio with the Extension Kit to control your heating.

The Extension Kit requires a Smart Thermostat -Starter Kit to work.