An instrumentation system includes a hand-held computer-based measuring meter having a visual display and a plurality of individual sensor modules that can be selectively coupled to the measuring meter for measuring one of a variety of parameters such as temperature, pressure, or the like. Each sensor...http://www.google.es/patents/US5375073?utm_source=gb-gplus-sharePatente US5375073 - Instrumentation system with multiple sensor modules providing accuracy code information
Instrumentation system with multiple sensor modules providing accuracy code ...