The AIRSON OM - 2100 is an 5 gas analyzer designed, using the latest infra-red microprocessor based technology to measure accurate values of carbon monoxide (CO), carbon dioxide (CO2), oxygen (O2), hydrocarbons (HC) and NOx coming from exhaust emission of vehicles. This fully digital analyser is specifically designed to meet or exceed nationwide performance specifications for automotive emissions measurement. The compact design and low weight of OM - 2100 permit greater flexibility in the diagnostics of exhaust gases. The extensive illuminated display provides easy and clear readings. It can be used as a mobile unit connected to the 12 V car batteries or as a stationary unit in the workshop connected to the mains. In order to gain the most from any RF signal generator or microwave signal generator, it is necessary to have an understanding of its operation and the capabilities it possesses.

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Gas measurements
  • Carbon Mono Oxide (CO)
  • Hydro Carbon (HC) for PETROL engines
  • Hydro Carbon (HC) for CNG engines
  • Hydro Carbon (HC) for LPG engines
  • Carbon Dioxide (CO2)
  • Oxygen (O2)
  • Nitrogen Oxides (NOx) (Optional)


Oil temperature

Computer compatibility
Microprocessor controlled gas calibration procedure for higher performance.
Calculates and outputs gas concentration directly as digital data via an USB serial interface
Automatically requests zero calibration to ensure maximum gas measurement accuracy
LCD display
Compact design
Portable and highly mobile.
Car Battery operated (12 V D.C.).
Inbuilt printer (Optional)
Standard date & time display
Leak test
Flow absence detection (Low flow check)


Measurement Range Resolution Accuracy
1. CO 0-9.999% by Vol.
10.00 - 12.00%
0.001% by Vol.
0.01% by Vol.
0.03% abs / ±3%rel.
2. HC 0-9999 ppm (n-hexane) by Vol.
10000-30000 ppm (n-hexane) by Vol.
1 ppm by Vol.
10 ppm by Vol.
10 ppm abs / ±5%rel.
3. CO2 0-20% by Vol. 0.01% by Vol. 0.4%abs / ±4%rel.
4. O2 0-21.7% by Vol. 0.01 by Vol. 0.1abs / ±3%rel.
5. NOx* 0-5000 ppm 1 ppm  
6. RPM 0-9999 rpm
10000-40000 rpm
10 rpm ±10 rpm
7. Oil temp. 0-150 °C 0.1 °C ±1°C
8. Lambda (λ) 0-9.999 0.001 ±0.3%
9. A.F.R. 0-99.99 0.01  


Measurement Principle (CO, HC & CO2 ) Infrared Measurement
Measurement Principle (O2 & NOX) Electro Chemical.
Interface USB
Display LCD display 20X4
Power supply AC 230V A.C. 50 Hz ±15%
Power supply DC 12 Volt DC ±10%
Power Consumption Approx. 40 W
Operating temperature 5°C -45 °C
Operating Atmospheric Pressure 860 hPa to 1060 hPa
Operating Relative Humidity up to 90 %
Response Time < 10 sec.
Warm-up Time <10 min. approx.
Storage temperature -10 °C to + 60 °C
Filters Bronze filters (< 5 micron) to avoid water vapors, oil, etc. coming with exhaust.
Dimensions (w*h*l) 29*12*29.8 cm.
Weight Approx. 3.4 kg.


1. Equipment : Airson 5-Gas Analyser model OM - 2100.
2. Gas Sampling Pipe : 5-mts. long gas sampling pipe.
3. Supply Cord  : One fully tested and standard power cord.
4. Exhaust Probe : 30-cm. Long exhaust probe that is inserted into the exhaust tail pipe of a vehicle to take gas samples.
5. User Manual : One manual, which contains all the necessary instruction about the instrument.


1. Printer Thermal Printer
2. Software CD Software CD for Computer Compatibility.
3. RS-232 Cable 1 mts. USB cable to connect analyser to computer.
4. RPM Cord (inductive/battery) long RPM cord for  RPM measurement.
5. Oil Temperature Sensor 10-mts. long oil temp. Sensor cord.
6. Extension Pipe Suitable Extension Pipes, covering all Vehicle types, to be provided where insertion of 300 mm probe length in the exhaust is not possible.
7. Battery Lead To connect the analyser with battery.



SN. Name Downloads
3. SOFTWARE 5 05
4. Brochure
5. Firefox 61.0.2 for 64bit
6. Firfox 60.0.2 for 32bit
7. RemotePC
8. AeroAdmin(Remote PC)
9. e-puc application
11. Manatec_USB