MIR Spirobank Smart Oxi is a cheap and compact electronical Spirometer for measuring, display and storage of the following parameters like PEF, FEV1, FEV6, FVC, FEF25/75 and FEV1/FVC (Tiffeneau) and Oximetrey SpO2% and pulse rate in PPM. The unit with the orange reusable turbine (M910008). Can be used with the iSpirometrie App which is available for Android or iOS Smart phones.