I have just located a Thermograph as well, not so sure about running that as well,it would only make sense outside, but it is the same make (Sharp and Mason) as the Barograph but very much newer.
The link at the bottom of the forums list on here seems very comprehensive, I have had a look at it and I will be going back.
http://magicseaweed.com/MSW-Surf-Cha...hartType=PRATE