The P-102 Cryocooler provides high-speed pumping of water vapour to the 10-8 Torr range while preventing backstreaming of vacuum-pump fluids. Featuring a patented single compressor refrigeration process that employs auto-refrigerating cycle cooling, this cryogenerator directly cools chevron baffles or probes to as low as -135°C using an HCFC-free refrigerant mixture in a closed loop system.