ESI 1 Channel Programmer ES1247B

This programmer can automatically switch your central heating or hot water on and off up to 3 times a day. It has a built-in non-replaceable battery which is designed to last for a lifetime. The clock is automatically programmed to adjust to winter time and summer time when times change. The clock is factory set to UK time but can be changed easily through the menu. During installation, you will have the option of 24-hour, 5-day/ 2day, or 7-day programming and 2 or 3 on/off periods per day, via a 4-position DIP switch on the back of the unit. The programmer itself is finished in a clear white and features a flip-over facia. Behind the flip-over fascia is a large, easy-to-read, digital screen which is designed to avoid accidental changes from being made. Read Less