... drops and continuity across Connectors Wires, Cables, Relays Contacts, Lamps, Switches, etc·Check components like Alternator Diodes, Relays Coils Condensers, Ignition ... Coils, Spark Plug Wires Magnetic Pick-ups, Motors, Switches, Fuses, etcSpecificationsFunctionRangeBasicAccuracyDC Voltage400mV , 4V, 40V 400V,1000V±(0.5% + 3d ...