Bacharach 10-5053 CO2 combustion test kit

Commonly used to calibrate CO2 incubators in the 0-7.6% range.  This chemical test device absorbs CO2 into an alkaline fluid filled reservoir via a rubber tube with a bulb used to manually pump gas into the unit.  This results in the expansion of volume by absorption of CO2 and an easily measurable change in liquid levels reports the relative percentage of this gas.  We rebuild them and recommend any tissue culture lab have at least 1 working instrument to ensure proper testing and calibration of their CO2 incubators.