Honeywell, Honeywell Sundial RF2 Pack 3
Brand: Honeywell in DIY & Tools
£38521
Standard
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 wir