The Solinst 12V Compressor is the alternative option to the CO2 gas bottle backpack. Simply hook the alligator clips to your car battery and begin sampling. Hired as part of our Low Flow / Micropurge Kit, the 12V compressor is easy to operate, lighter than the CO2 backpack and has a safety shield between the motor and carry handle to protect both the user and the instrument. Next time you are looking for a low flow / micropurge kit, try the Solinst 12V Compressor.