This is a modern gas analyser(NGA-6000) designed for today's stringent emission requirements. It has functions to measure four gases (CO, HC, CO2 and 02) and provides lambda and air/fuel ratio calculations. Display is handled by six bright LED elements and test results can be printed out through the built-in printer. PC-Link software for data analysis & storage is also provided together with the main unit.  It can be upgraded to the function to measure up to five gases upon request and has RS232 communication for display on the Carman VG, 1 & Lite