[mickmc]

Yep Dave - as Mel says - fitted one quite easily and it works well - its a Yale model - nice yellow box with YALE on - looks good and offputting to "Burgular Bill" -

only wiring is from control box to mains - and from control box to siren box - prob may come if you need to drill thro' wall - old terraced houses are thick - but have long drill bit if you want to borrow - just let Mel know