Sundial RF 2 Pack 3 contains a wireless enabled programmer (ST9420C), a wireless thermostat (DT92E), and a wireless cylinder thermostat (CS92A). In a stored hot water heating system which has no room thermostat or cylinder thermostat the existing wiring can be used to provide Boiler Interlock by fitting Sundial RF 2 Pack 3. 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 IP30 Rated ST9420C requires a 230V AC power supply, DT92E requires 2 x AA size, 1.5V alkaline batteries (supplied), CS92A 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

Brand Name	Honeywell
Colour	White
Manufacturer Model No	Y9420S2005
Type	Heating Control Packs