Hello. Impress your friend as you pull out this vintage 0-60 volt DC pocket sized hand volt meter and proceed to test his car battery. This AIRLINE series DC volt meter reads up to 60 volts. The bottom of it case is the negative probe/spike and just put the 15" long positive wire/probe tip to the positive terminal as pictured on my car battery photo. Accentuate the positive and negate the negative...OK Got it ? CHEERS ! loc:Lrblkstl
