• Suitable for industrial applications
  • Simultaneous measurements of up to 9 gases
  • Up to 6 electrochemical sensor configurations
  • Emission calculations
  • Gas temperature measurement up to 2,012°F
  • Differential pressure measurement ±40 inH2O (100hPa)
  • Integrated gas cooler
  • Automatic condensate draining pump / PTFE filter
  • Air purging pump for CO-sensor protection
  • Built-in speed printer
  • Internal data storage for up to 8,500 measurements
  • RS232 / RS485 ports


The MRU Vario Plus Emission Monitoring System is suitable for industrial applications using combined infrared (NDIR) technology and electro-chemical sensors for maximum versatility. The Vario Plus complies with USEPA methods CTM-030 and CTM-034 and international ASTM D6522 Certified according to DIN EN 50379-1 and DIN EN 50379-2.

The Vario Plus simultaneous measurements of up to 9 gas components including O2, CO, NO, NO2, NOx, SO2, CO-high, CO-very high, H2S or H2, CH4 or C3H8. Up to 6 electrochemical sensor configurations are possible. An additional 3 gas NDIR bench with CO2, CO-high, CH4 (C3H8) is available.