I see a few kinds of temp guns to choose from
The 29 dollar one.

http://cgi.*********/ws/eBayISAPI.dl...gory=1200&rd=1


a "real" one that I use for fixing cars

http://tools.batauto.com/index.php?c...on=show_detail

and the kind the instal in the car.

most have +- 2 percent accuracy

what do you guys use?