I have the Innovate LM-1 which does all I need it to do. You could go with a sensitive voltmeter like is mentioned in the Ray Mick reference I think. The LM-1 does have data logging capability but I haven't used it on my Gremlin. We did use that capability at Bonneville for the last two years however. Joe Fulton Salinas,CA _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list