Portable CO2 Gas Analyzer - EGM-5_1619760
Portable CO2 Gas Analyzer - EGM-5_1619760
Portable CO2 Gas Analyzer - EGM-5_1619760
Portable CO2 Gas Analyzer - EGM-5_1619760
Representative image only

Portable CO2 Gas Analyzer - EGM-5

Analysis MethodNon-dispersive infrared, configured as an absolute absorptiometer with microprocessor control of linearization
Pressure Compensation Range80–115 kPa
Accuracy less than 1% of span concentration over the calibrated range but limited by the accuracy of the calibration mixture
Linearityless than 1% throughout the range
StabilityAuto-Zero at regular intervals corrects for sample cell contamination, source and detector aging and changes in electronics
CalibrationUser programmable calibration (if required)
Warm-Up TimeApproximately 15 minutes
Sampling Rate10 Hz. Sample data is averaged and output every 1.0 seconds
Sampling PumpIntegral air sampling pump. Pump can be programmed for both dynamic and static sampling.
Gas Flow Rate200-500 cc/min (280-340 cc/min is optimal). An internal electronic flow sensor monitors flow rate.
Terminal Block10 pin terminal block for system inputs and outputs
Analog Output0–2.5V (CO2 range selectable)
Digital OutputUSB
Environmental Sensor Inputs2 inputs available for use with external chambers and environmental sensors
AlarmVisual and audible alarm/warnings. 2 relay contacts (Alarm1 and Alarm2)
Data Storage (USB)USB Flash Drive port for data storage in multiple formats
Mini USBFor connection to external PC
Touch Display2.7” electronic paper touch display with 264 x 176 pixel resolution
Dimensions20 cm (L) x 20 cm (H) 10 cm (W) (Enclosure only)
Weight1.5 kg
EGM-5 Data Sheet


Measurement of Soil & Net Canopy CO2 Flux That Is Accurate, Rapid, Reliable, & Affordable

The EGM-5 is a field portable instrument designed for accurate and reliable measurement of CO2. It is extremely easy to set up and install, and our innovative “Auto-Zero” technology ensures long term stability, accuracy and calibration. The EGM-5 requires minimal maintenance without the need for factory recalibration that saves users both time and money


CO2 Measurement Ranges:

0-1000 ppm (µmol mol-1)

0-2000 ppm (µmol mol-1)

0-5000 ppm (µmol mol-1)

0-10000 ppm (µmol mol-1)

0-20000 ppm (µmol mol-1)

0-30000 ppm (µmol mol-1)

0-50000 ppm (µmol mol-1)

0-100000 ppm (µmol mol-1)

Readings are automatically corrected for temperature and pressure.

Please specify at time of order


Product Features

  • High precision, compact, non-dispersive infrared gas analyzer for CO2
  • Accuracy: < 1% over calibrated CO2 range
  • CO2 ranges up to 100000 ppm (10%)
  • Automatic pressure and temperature compensation
  • Powerful internal, rechargeable battery providing up to 16 hours of continuous use
  • Numeric and graphical display of data in real time
  • Convenient data storage and transfer using USB flash drive
  • Operation from AC or DC power inputs
  • Large touch display with excellent sunlight readability and optimized viewing angle
  • Built-in air sampling pump and electronic flow sensor
  • Voltage and digital output
  • Audible and visual alarms/warnings
  • Wide range of accessories and sensors available
  • WiFi (Optional)


  • Ambient air monitoring
  • Plant physiology
  • Soil CO2 efflux
  • Canopy assimilation
  • Global change studies
  • CO2 sequestration 
  • Borehole CO2 monitoring
  • Air-sea surface exchange (pCO2)
  • Environmental toxicology
  • Volcanology
  • Bioremediation


Calibration & Stability

For over 30 years, PP Systems has been manufacturing high quality CO2 infrared gas analyzers for customers worldwide. The EGM-5 is perfectly suited for applications that demand portability and a high degree of accuracy and control with minimal maintenance. The design of the instrument ensures an inherent calibration stability that has been confirmed by many years of experience in gas analysis technology. The EGM-5 does not require CO2 recalibration, although we do recommend periodic checks to confirm system integrity. It employs a non-dispersive, infrared measurement technique, coupled with microprocessor-based signal processing, to achieve excellent stability and specificity to CO2. Our innovative “Auto-Zero” technology ensures fast warm-up, long term stability, accuracy and analyzer calibration. It also minimizes the effects on span gas sensitivity, sample cell contamination, IR source aging, changes in detector sensitivity and electronics.



The EGM-5 is a compact, lightweight (1.5 kg) instrument that is packaged in a rugged, aluminum enclosure with a shock absorbing polyurethane base making it extremely robust and reliable under harsh environmental conditions.

Powerful Battery Technology

The EGM-5 is supplied with a very efficient, powerful and rechargeable Li-ion battery capable of providing operation in the field for up to 16 hours. The instrument can also be used with an AC power supply (included) for continuous operation from the mains in the laboratory


Touch Display

An innovative, large, touch display (EPD) features simple and intuitive system navigation and it offers excellent viewing under high sunlight.

Integral Air Sampling Pump

A miniature, long life air sampling pump is included as standard for dynamic gas sampling. The pump can easily be disabled for static measurements if required.

Data Storage

Data storage is virtually unlimited. Data is stored on a USB flash drive (memory stick) for safe storage and easy transfer of data to your PC.


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