TOM Add-on Kit - MFC Version. Measures OTR, CTR and RQ..in 4 shake flasks.Contains: TOM measurement module - MFC 377x99x102(LxBxH), ambient pressure, 15-40°C,30-85% rel. humidity, 0-16% CO2, 0-25% O2; connection cable 0.5m; 4 250mL TOM shake flasks included