Sundial RF 2 Pack 2 contains a wireless enabled programmer (ST9420C) and a wireless thermostat (DT92E). In a stored hot water heating system which has no room thermostat the existing wiring can be used to provide Boiler Interlock by fitting Sundial RF 2 Pack 2.
Energy saving time proportional and integral (TPI) control with optimum start, delayed start and optimum stop energy saving technology
Wireless signal strength indicator operating at 868 MHz with a communication range of 30 metres in typical residential buildings
Operating temperature range from 0 to 40°C
ST9420C requires a 230V AC power supply and DT92E requires 2 x AA size, 1.5V alkaline batteries (supplied)
ST9420C has two single poles, double throw SPDT relay as a switch type
ST9420C is 99 x 145 x 35mm (h x w x d) and DT92E is 92 x 90 x 27mm (h x w x d)
7 day programming (7 day, 5/2 day or one day) with a choice of 3 different presets for energy and time saving
Meets building regulations part L
Set everyday differently with 7 day programming
7 day, 5/2 or 24 h
Digital or Analogue
Wired or Wireless
Heating Control Packs
Made To Order
Manufacturer Model No
One or more item(s) in your basket aren't available for delivery to
Unfortunately, we were unable to find any substitute items to replace them with. To continue with the order we will have to remove them from your basket.
If you would like to prevent any changes, press cancel.