Built into a portable robust case complete with monitor and keypad The SDAS4 records pressure (or any process signal) from up to eight 4-20mA transmitters and temperature from Pt100 probes. It displays and stores the information both digitally and graphically. The graphs or data can be printed for witnessing or included in customer documentation packages. The standard printed chart provides a unique identifier, specific test notes, test equipment serial numbers, date and time of the test graph, your company name and client name with sections for test engineer and witness signature.