The Emissions Systems Exhaust Analyzer, No. 5003, uses updated electronics and a 7” HD capacitive touchscreen display with web-based software and numeric read out of live tests. The system notifies the technician of error messages and calibration routines, as well as shows a display and computer mode. The unit is compact, featuring metal housing that is designed to withstand difficult shop or mobile environments. The unit can be shipped as a four-gas or five-gas analyzer. It is also web enabled, allowing users to connect by wireless or wired LAN using Ethernet and any web browser.