Extech CO240 Handheld CO₂ Indoor Air Quality Meter
What is the Extech CO240 Handheld Indoor Air Quality CO₂ Meter?
The Extech CO240 Handheld Indoor Air Quality CO₂ Meter is a portable air quality testing instrument designed for HVAC engineers and building services technicians working in commercial and controlled environments. It measures carbon dioxide (CO₂), air temperature and relative humidity, while also calculating dew point and wet bulb, supporting fast IAQ assessments and ventilation checks.
With a maintenance-free NDIR CO₂ sensor and audible high-level alarm, the CO240 allows technicians to quickly identify elevated CO₂ levels and make informed adjustments to ventilation systems. It’s well suited to use in plant rooms, offices, schools, hospitals, factories and controlled growing environments where air quality directly affects comfort or performance.
How does the Extech CO240 help during site surveys and commissioning?
The CO240 provides real-time CO₂ readings with clear dual-display visibility and PC connectivity for live data streaming. This makes it ideal for spot checks, commissioning work and short-term monitoring where reliable CO₂ data is needed to confirm adequate ventilation and indoor air quality.
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.
