The Th!nk Extender is the wireless module that connects the Th!nk Basis Unit to the central heating boiler or heat pump. The Extender activates the flow of hot or cold water by transmitting the heating or cooling signal to and from the heat source. Additionally, the Extender can function as a signal booster for the wireless (RF) Th!nk Thermostats. By connecting a pump (230V) to the Extender, it can also be easily controlled wirelessly by the Basis Unit.
