The Vent Monitor Board Subassembly Cal 7100 PCA in Anesthesia Delivery is used in many medical equipments as applicable. It is comprised of a Flow transducer, Oxygen sensor, ACGO switch, Bag/vent switch, Canister release switch, Control panel cover open switch, CO2 bypass switch and Module ID. It is made from the material which possess corrosion resistant, easy maintenance, impact resistant, ductility, reliable operation, excellent performance and increased lifespan. The VMB has four potentiometers used to calibrate the inspiratory and expiratory pressure transducers. It is used in devices like Aestiva 7100 Comp Rail Mt, Aestiva 7100 and Vent Aestiva 7100 Compact.