Viasensor has multiple units that include other gas sensors. Some of these include: CO2 Sampling data logger, four channel wall mount controller, six gas sample drawing monitor EAGLE 2, Confined Space Multi-Gas Monitor GX-2012, G150, G150-01N, G150-11N, INCO CO2 incubator, LANDTEC GEM 5000, M2 Stand Alone Transmitter, Smallest four gas confined space monitor GX2009. All of these gas instruments/units are preferred among professionals worldwide. Multi gas detector gas instruments are needed for many applications to provide reliable, constant, and safe units.