The Honeywell Home ST9100C is a 7-day single channel timer that gives great flexibility. It offers up to three ON/OFF switchings per day, plus each day can be programmed differently on a 5/2 or 1 day basis. Its ideal for combi boiler installations or multi-zone systems when the user has different heating needs from day to day.

• Large backlit LoT display for helpful text feedback
• Factory-set clock and date
• Automatic summer/winter adjustment
• Choice of 3 different built-in programmes
• +1 facility for up to 3 hours boost or programme extension
• Up to 3 ON/OFF times per day
• ‘Holiday button
• Superseded the ST6100C