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G150 CO2 Infrared Portable Gas Detector

The G150 CO2 gas detector is ideal for indoor air quality measurements, ventilation verification and process operations.

Each unit includes a battery charger and sample tube kit.

Ship from manufacturer-4 weeks delivery.

For best pricing, please call 1-800-952-3293 or email







The G150 CO2 gas detector is ideal for indoor air quality measurements, ventilation verification and process operations. The G150 infrared portable CO2 gas analyzer has improved software, the latest battery technology, USB data communications and flexible sensor options. In addition to carbon dioxide infrared based detection and measurement, each model offers optional sensors including oxygen, temperature and relative humidity. Infrared sensor technology is ideal for carbon dioxide detection as it offers accurate, reliable measurement with low maintenance costs.

Viasensor was acquired by QED Environmental Systems.

Additional information

Weight N/A


  • Available in 4 versions, CO2 only, CO2 with oxygen, CO2  with rH probe and CO2 & Oxygen with rH probe
  • Optional add on are a temperature probe and data download kit
  • Improved menu driven software with intuitive operation and interactive screen prompts
  • Large data storage – 1,000 data set capacity with optional USB download software kit
  • High capacity lithium-ion battery for up to 10 hours of runtime
  • Ergonomically designed case with integral stand and rubber sides for robustness
  • Stable infrared (IR) CO2 sensor provides better accuracy
  • Internal pump draws 100 cc/minute for fast response
  • Large backlit LCD display with graphic icons is easy to read in any lighting condition
  • User adjustable settings for alarm and calibration setpoints via keypad (no PC required)
  • User ID code setting for security and record keeping
  • Large data storage or 1,000 readings and 270 events viewable on screen
  • User friendly software and USB data download for data graphing and trend analysis (optional kit)
  • Integrated Nafion tube for humidity reduction of sample gas ensures stable readings
  • All models have 2 temperature probe ports for T1-T2 calculation


Range CO2: 0-10,000 ppm
O2, Optional: 0-100%
Resolution CO2: 5 ppm increments
O2: 0.1% increments
Response Time CO2: T90<20 seconds
O2: T90<60 seconds
Accuracy CO2: ±1% of range, +2% of reading
O2: ±1.0% full scale at constant temperature & pressure
Temperature, Optional Up to 2 readings using optional probes
32ºF to 122º
Humidity, Optional rH probe 0-100% rH, non-condensing
Pump Flow 100 cc/min typically
Data Storage 1000 reading + 270 events
Data Download USB type B mini connector, HD device class
Power Source Lithium-Ion rechargeable battery
Charger Universal AC charger, 120-240 VAC
Battery Life 10 hours, 8 hours with pump
Charge Time 3 hours
Alternative Power USB connector to PC
Operating Temperature 41°F to 104°F
Relative Humidity 0 to 95%
Dimensions 6.5″L x 4″W x 2.5″H
Weight 18 ounces
Construction High impact ABS Case


G150 CO2 gas detector Literature

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