Testo 420 Volume Flow Hood

Testo 420 Volume Flow Hood – Professional HVAC Airflow Measurement (320×240px Class)

Order-Nr.  0563 4200

The Testo 420 Volume Flow Hood is one of the most advanced HVAC airflow measurement tools on the market, designed for precise air balancing, ventilation diagnostics, and indoor air quality (IAQ) compliance. Built for engineers, HVAC technicians, commissioning teams, and facility managers, this lightweight Testo flow hood simplifies the measurement of air volume, air velocity, temperature, and differential pressure in complex ventilation systems.

With its highly accurate sensors and large capture hood, the Testo 420 balometer is ideal for supply and return outlets, particularly in hospitals, labs, cleanrooms, commercial buildings, and industrial sites—where correct airflow is critical for safety and energy efficiency.

Key Advantages of the Testo 420

This section brings together the most important benefits technicians look for when choosing a digital airflow hood.

• Highly accurate airflow measurement (core: Testo 420 air flow hood)

• Lightweight and portable — only 2.9 kg

• Perfect for large air vents and diffusers

• Measures volume flow, air velocity, pressure, temperature

• Manual focus and optimized ergonomics for extended inspections

• Built-in flow straightener for stable readings in turbulent airstreams

• Large display + Wi-Fi and USB connectivity

• Ideal for HVAC balancing, commissioning, IAQ testing, and ventilation audits

These advantages make the Testo 420 airflow capture hood an industry favorite for precise measurement and troubleshooting.

Testo 420 Applications – What This Volume Flow Hood Is Used For

To make airflow testing more intuitive, the Testo 420 is optimized for a wide range of real-world tasks.

Common Applications

• HVAC air balancing

• Ventilation system commissioning

• Cleanroom airflow verification

• Hospital and laboratory supply/return testing

• IAQ compliance checks

• Energy audits and airflow optimization

• Facility maintenance and inspection

Whether you’re measuring airflow from a ceiling diffuser or confirming ventilation rates in a hospital room, the Testo 420 volume flow hood delivers dependable and repeatable results.

Key Features of the Testo 420 Volume Flow Hood

To help technicians work faster and more efficiently, the Testo 420 includes several advanced features:

• IR resolution: 320 × 240, expandable with SuperResolution (NTT term)

• Manual focus for crisp airflow readings

• Interchangeable capture hoods for different vent sizes

• Wi-Fi + USB data transfer for real-time reporting

• Rugged, industrial-grade build for long-term field use

• Lightweight (2.9 kg) for overhead work

• Automatic calculations of air changes per hour

• Compatible with Testo 417 and Testo 440 systems

These features make the Testo 420 air flow hood one of the most complete airflow measuring instruments available today.

Buy Testo 420 in UAE – Best Price & Official Supplier

Looking to buy Testo 420 at the best price in UAE?

MME Electronics is the official Testo distributor in the UAE, offering:

• Genuine Testo products

• Best Testo 420 price in UAE

• Technical support from trained engineers

• Fast delivery within UAE

• Warranty + calibration support

For Testo 420 manuals, datasheets, or quotations, contact our team anytime.