On Fri, Apr 13, 2012 at 9:53 AM, Stephen Rice <stevedmc@xxxxxxxxx> wrote: > ** > > > $300? I thought those were thousand dollar machines? I'm interested > in doing something like this as well. > The four- and five-gas analyzers are very expensive. Other, less-complex ones will cost less. This one, for example, only checks carbon monoxide. http://www.etoolcart.com/gunson-gastester-portable-exhaust-gas-analyzer.aspx And this one plugs into the oxygen sensor, does not have its own power supply, and gives an AFR reading only. http://www.amazon.com/MAGNUM-Exhaust-Emission-analyzer-DISPLAY/dp/tech-data/B007JINODQ These are obviously nowhere close to the kind of machines a real automotive shop or emissions testing station would have, but they might be good enough for "backyard" use. Farrar Hudkins #2613 [Non-text portions of this message have been removed] ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/