Reliable Airflow & IAQ Measurement for HVAC Engineers
The Testo 440 is a professional air velocity and indoor air quality (IAQ) measuring instrument designed for HVAC engineers and ventilation technicians working across commercial and industrial environments.
Built for fast, accurate diagnostics of airflow, volume flow and indoor air quality, this handheld device simplifies commissioning, maintenance and troubleshooting of HVAC systems. With intuitive menus and compatibility with a wide range of probes, it helps engineers complete ventilation testing and balancing tasks efficiently and in line with UK standards.
Ideal for those searching for a portable airflow meter, HVAC testing equipment or IAQ measurement device in the UK, the Testo 440 delivers dependable results with minimal setup time.
Why Choose the Testo 440?
Pre-programmed measurement menus streamline common HVAC tasks like duct airflow and outlet measurements
Wireless Bluetooth probe compatibility reduces cable clutter on site
Stores up to 7500 readings for easy reporting and compliance documentation
USB data export supports quick report generation for clients and audits
Compact and durable design suited for field engineers
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.