The Salus RXVBC605 thermostat receiver unit is used for wiring connections and heat on/off control for Vaillant ecoTEC boilers Mk1 and Mk2. The unit is linked securely to your chosen transmitter by a radio frequency (RF) signal. It can be mixed and matched to suit your needs with the following units: iT500BM, ST625TX, ST325TX, RT505TX and RT305TX.
