Central heating 2 gang box fitting

[brizospark]

I require a central heating time clock that will fit onto a 2 gang metal box

Or is there a conversion kit that will allow me to fit standard one gang fitting onto 2 gang?

Thanks in advance

 

[onions1066]

Not sure of one that fits on a double box, but you could look at the larger clock to cover off the top of my head something like a potterton mini minder e or something like that.