How to close-open PVC window remotely?

I used a product a while back for wheelchair bound people operating normal height windows called OL90 made by a company called Geze. They have a couple of UK distributors. It's a manual system but I think they do an electric one (quite expensive). If you have no one to fit it look up some of the conservatory installers who may fit their own fanlight opening kits but OL90 is tried and tested. I also used it in a factory where the fanlights were about 10 meters up.

rdpaterson@dundee.ac.uk
October 2008