Measure respiration of plants (leaves, shoots and roots) with Q-Box Plant CO2 analysis package. To measure O2 exchange rates from a single leaf consider our differential oxygen analyzer with resolution of ±1 ppm against 21% O2 background in air. Multiple sample measurement are available when gas switching system is included. With Q-Box soil respiration package monitor soil CO2 exchange in vivo in the field or in samples collected from the field and brought back to the lab.