It's a professional vehicle diagnostic tool for checking your vehicle batteries. Use to test a wide range of 12V batteries (Starting,Deep Cycled and Marine) of Wet(Flooded),VRLA or Maintenance Free (MF),Sealed Maintenance Free (SMF),Absorption Glass Mat(AGM),EFB and GEL Cell.
The unit has all the test parameters I require for a occasional user, is easy to use and works both on 12 and 24 volt systems and with no internal batteries to worry about is a bonus