The programmable power-saving TRV for DECT home networks.The Comet DECT is a simple and clever extension of your FRITZ!Box home network to control radiator temperature. The DECT-enabled wireless energy-saving TRV connects safely to the existing network. Set up is pretty straightforward and accessible from wherever you are: use your smartphone, laptop, or tablet. Easy to set upRemove old radiator valve - check if you need an adapter - attach union to TVR or adapter - done. Comet DECT is compatible with all common radiator valves. As installing doesn't require draining of radiators or changing the settings of the central heating system, this TRV is sutable for both tenants and home owners.