I can't get one tonight, look at this picture and the manual and let me know if your interested.
here is a picture of one (not mine, mine is in much better shape)
http://www.lonestaronline.com/fullsi.../813258895.jpg
and here is the user manual
http://www.raymarine.com/SubmittedFi...inder/V850.pdf
you can get all the specs and size