A sensor apparatus and sensor apparatus system for use in conjunction with a cassette, including a disposable or replaceable cassette. In some embodiments, the cassette includes a thermal well for permitting the sensing of various properties of a subject media. The thermal well includes a hollow housing...http://www.google.fr/patents/US20080240929?utm_source=gb-gplus-shareBrevet US20080240929 - Pumping Cassette
