In a message dated 10/9/98 11:38:31 AM Pacific Daylight Time, JBURKE@fusn.com writes: << Is anyone developing a micro temperaturesensor which incorporates the flow (local atmosphere) of thermallly conductive gases (i.e He)? Thanks, John Burke EATON Corporation >> John we have develped a mass flow controller that is based on gas temperature and pressure through an orifice. If that is what u are interested in. babak taheri redwood microsystems inc.