Drummond Scientific Pipet-Aid XP pipettor

This was the second generation cordless Drummond Pipet-Aid pipettor known as the XP model was reasonably reliable and easier to change the NiCd rechargeable 9 volt battery.  Fully refurbished and working, these units were also sold as the Becton Dickinson or Falcon Express lines of pipettors made by Drummond Scientific Company.