Key Features 7 Day Heating/Water Programmer 2 Channel 3 timed control periods per day (5 day and 2 or 7 day programming) Programme copy function 1 and 2 and 3 hour boost function for central heating and hot water 7 day factory fitted rechargeable battery backup Always ON and OFF override mode c/w holiday mode automatic summer and winter changeover Blue LED screen illuminates upon setting Change over contacts optional pumped or gravity operation set by DIP switches
eBay