Doser has optional purge unit attached, and comes in its original crate with some change parts. Very Low hours on this unit.

The UltraDoser® 150S LNs Dosing System is a multi-purpose
liquid nitrogen dosing system utilizing advanced cryogenic
technology and PLC programming. LN2
is supplied to the UltraDoser unit by a vacuum insulated hose and flows into the dosing head. A sensor detects the speed of the line (encoder
compatible); a second sensor detects the presence of a container. When a container is detected, the dosing head opens and dispenses an exact amount of pure LN2.
A PLC (Programmable Logic Controller) is the brains behind integrating
the sensors, controls and human interface.
Chart engineers designed an ultra-efficient system for low to
medium production line speeds to dispense a precise dose of
LN2 into every container every time. The LN2 gasifies and is
either trapped in the container to add rigidity or escapes with oxygen to inert the headspace.