Viasensor G150 CO2 Analyzer


The viasensor G150 CO2 Analyzer is specially designed to monitor CO2 for all Indoor Air Quality (IAQ) applications.
This unit has been developed to incorporate the latest technology and specifications requirements, that provides the user with a fast, simple-to-use and accurate piece of environmental field kit.

Our package can include some or all of the following.


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Product Selection Ensuring we get you the right product at the best price
Calibration / Preventative Maintenance Ensuring the equipment is maintained and/or calibrated as per ISO17025 standards or equivalent (certificate provided after installation)
Extended Warranty with Calibration / Preventative Maintenance Ensuring you are always covered no matter what and when equipment failures may occur

Gas Ranges

Gases Measured CO2 By custom dual wavelength infra-red sensor with reference channel
O2 (Optional) By internal electrochemical cell
Oxygen cell lifetime Approximately 3 years in air
Range CO2




Measurement Accuracy* CO2





± 1.5% of range after calibration (typically ±
10ppm at 500ppm CO2, after calibration)

± 1.0% of range after calibration

Response time, T90 CO2


≤20 seconds

≤60 seconds

* plus accuracy of calibration gas used



Flow 100cc/min typically


Weight 1.1 lbs (495 grams)
Size L 6.5 in, W 3.9 in, D 2.2 in (L 165mm, W100mm, D55mm)
Case Material ABS / Polypropylene with Silicone Rubber Inserts
Keys 17 Resin capped Silicone rubber keys
Display Liquid crystal display, 128 x 64 pixel with RGB LED back-light
Gas sample filters Built-in gas dryer tube to remove moisture
User replaceable PTFE water trap filter



Description Part No.
VIASENSOR Temperature probe (5mm Tip) G-TP5
VIASENSOR Temperature probe (100mm, stainless steel tip) G-TP100
VIASENSOR G Series Download Software for managing data G-SW
VIASENSOR Relative Humidity Probe (15mm diameter) G-RH15
VIASENSOR Relative Humidity Probe (4mm diameter) G-RH4
VIASENSOR Soda Lime Kit for Zeroing. Includes: Tubing, Connectors and (3) Filters. G-SLKIT
VIASENSOR Hard Carry Case for G Series G-HCASE
VIASENSOR Soft Carry Case for G Series G-SCASE
VIASENSOR Filters (Pack of 10) G-PTFE
VIASENSOR Sample Tube Kit with Filter G-TKIT
VIASENSOR Battery Charger G-BC
VIASENSOR USB Communication Cable G-USB
VIASENSOR Calibration Kit. Includes: Regulator, Tubing and Filter. Gas Not Included. G-CALKIT
VIASENSOR Moisture Trap Filter (Pack of 2) G-MT
VIASENSOR Stepdown Regulator (For use with G110 and G210 series) G-STEPPR