• Ideal for quick, accurate, and easy-to-read level readings of diesel exhaust fluid.
  • The DEF tester uses a proprietary method to provide accurate results and even compensates for temperature.
  • Simply draw the DEF solution into the hydrometer, tapping away any air bubbles.
  • If the arrow is in the ‘good zone’ the solution does not need to be replaced.
  • If a longer reach is needed, users can attach the included extension hose by inserting the smaller tip into the attached hose.
  • The SP110 is made in the U.S.A.