There is a guy on ebay that sells Carrier charts for like 15 bucks. I have a SH-31 and never using it.Its good for P/M work. Or as a learning tool, But you cant beat a good thermometer and a Temp Clamp. I carry a Fieldpiece thermometer and a Fluke line clamp in my tool bag fits nicey nice in bag. If you got a Fluke 16 they work well for line temps as well.
[Edited by fitter638nyc on 06-23-2005 at 03:36 AM]