Battery Doctor Circuit & Spark Plug Tester

High quality tester instantly locates wiring problems such as bad connections, faulty or broken wires and sockets in 12 – 24 volt systems. A light will shine if the battery’s condition is sound. No light will be visible if there is a short circuit or the battery is low. Includes alligator ground clip and 3″ metal probe with cover.WARNING: Cancer and/or Reproductive Harm. See