The Lancom 4 is a compact, portable combustion and emissions analyser for checking or testing a boiler system or pollutant process. Building on the success of the Lancom III, the Lancom 4 is represents the next generation of portable gas analyser technology. It has the capability to monitor up to 9 different gases, and a total of 17 measurement parameters simultaneously. The Lancom 4 offers the best accuracy available from a portable gas analyser, achieved by using an advanced sample conditioning system..