... Any 6 to 42 Volt DC powered circuits. Automotive Short & Open FinderApplication:Automobiles,Trucks,Trailers,Boats,RVs,Any 6 to 42 ... a numeric value to indicate short or open.Transmitter and Receiver LEDs show open or short circuit condition.Variable audio/visual ... all tracing situations.Tracing of wires is made possible even inside bundles,conduits,behind panels,under carpets,upholstery,etc.Function:1 ...