R09 is an wireless RF receiver for boiler and hot water control.  It can cater for a single heating zone and the hot water cylinder as well as providing a boiler enable output.Nomrally the reiceiver shall work with a wireless thermostat sender. Output indications are provided and the unit is surface mount for easy installation. In addition, the R09 can work without a thermostat transmisstor and can work as wifi Switches for the two zones control Item No.: R09 Max. 5A each output  868mhz  WIFI Remote control (Optional) Convenient wiring and installation