Extech CO220 Desktop Indoor Air Quality CO2 Monitor
What is the Extech CO220 Indoor Air Quality CO₂ Monitor?
The Extech CO220 Indoor Air Quality CO₂ Monitor is a desktop air quality meter designed for HVAC engineers and ventilation technicians responsible for assessing indoor environments. It accurately measures carbon dioxide (CO₂) levels, air temperature and humidity, while also calculating dew point and wet bulb, supporting ventilation checks and IAQ compliance.
Using a maintenance-free NDIR CO₂ sensor, the CO220 delivers reliable ppm readings without regular sensor replacement. It’s ideal for use in offices, schools, healthcare facilities and commercial buildings where CO₂ build-up can indicate poor ventilation and reduced occupant comfort.
How does the Extech CO220 support ventilation and IAQ assessments?
The CO220 helps technicians quickly identify elevated CO₂ levels using visual indicators and audible alarms, making it easier to confirm whether ventilation rates meet recommended guidelines. With built-in TWA and STEL calculations, it also supports longer-term exposure assessment during site surveys and commissioning work.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
