These completely self-contained electronic ignition units offer a simple alternative to traditional points and condenser arrangement. They are easy to install with no external control boxes to mount and only two wires to hook up and no permanent modifications involved. The unit uses a sealed Hall Effect sensor that is impervious to dirt, dust, moisture, or vibration, and retains standard advance curve. Unaffected by distributor shaft wear, maintains firing accuracy to within 1/4 degree, reduces spark scatter over the full rpm range. One year warranty.