"Having already got a Drayton controller I went for the LP112. Glad I decided to stay with Drayton, two screws and about 5 mins of my time (don't forget to isolate the heating first) it was up and running again. Heating working again, wife happy, at last!.
For the sheer simplicity (the backplate is brill) of up or downgrading your controller functions, stay with Drayton.
"this product was to replace my worn out programmer on my central heating system. It was less than half the price of the makers replacement unit and was fitted in half an hour. so far a very good product"
"It worked for few days than packed in, didn't realise it was fault and called boiler engineer only to discover faulty programmer. With boiler engineers call out charge ended up being expensive exercise. Screwfix refunded promptly."