LavaTap Pro Controls 7 Day 2 Channel Heating Programmer Direct Replacement for Honeywell ST9400C Heating Hot Water Control Compatible with Honeywell ST699 ST799 ST7100, White

Clips onto your ST9400C backplate: A straight swap for the Honeywell ST9400C. Unclip the old programmer, clip this one onto the same wired backplate and the wiring stays exactly as it is Also replaces older models: Upgrades Honeywell ST699, ST799, ST7100, ST6200, ST6300 and ST6400 programmers with a simple wiring change at the backplate by a competent person Made and supported by Honeywell: Built by Resideo, the company behind the Honeywell Home range, and the TTH2CT is labelled From Resideo on the back Check your system first: A wired 230V mains programmer for systems with a hot water cylinder, such as Y plan, S plan, C plan and W plan. Not wireless, not Wi-Fi or app controlled Heating and hot water set separately: Two channels with up to 3 on and off periods a day, programmed for each day of the week, with a copy day button so one day can be repeated One touch overrides: Extra Hour adds 1 to 3 hours, Override switches a channel on or off until the next period, and Holiday mode turns both off for up to 99 days while you are away Ready to run, easy to read: Factory set energy saving schedule, automatic summer and winter clock change, settings kept in a power cut, and a large backlit screen with text prompts