The BioChamber 250 is a 250 mL Nalgene bottle that can be used with a CO2 Gas Sensor (GDX-CO2) and an O2 Gas Sensor (GDX-O2) to monitor gaseous carbon dioxide and oxygen levels simultaneously in a closed system.
With the bottle on its side, place the CO2 Gas Sensor into the neck of the BioChamber and the O2 Gas Sensor into the rubber grommet as shown. This design keeps the O2 Gas Sensor in the desired upright position while placing the CO2 Gas Sensor in an ideal position for gas level monitoring.
A size 6 rubber stopper fits into the rubber grommet if an O2 Gas Sensor is not used. Note: While the stopper fits snugly in the grommet, it is not guaranteed to be a water tight seal.
The BioChamber 250 replaces the CO2 to O2 Tee.