Refurbished Alltech ELSD 2000ES complete with Alltech ELSD 2000 control software and manuals. The ELSD 2000ES has all the benefits of the ELSD 2000 plus even greater sensitivity. The optical and electronic components have been redesigned to minimize background noise and increase sensitivity. Please contact us for complete used and refurbished Alltech HPLC instrument, and warranty details. (Alltech 2000ES)