The testo 420 flow hood 305 x 1220 mm is lightweight and with flow straightening for more precise measurement at swirl outlets.

Choose this replacement hood from Testo to monitor the airflow rate of your ventilation system. For ease of assembly, this unit is designed for use with the volume flow hood set in the 420 series (910-7526). As this set comes with a measuring instrument and a USB cable, you can store and transfer your data with ease. The integrated flow straightener helps correct irregular airflow at swirl outlets to ensure precise measurements.

• Light weight of 2.9kg for ease of handling
• Broad operating temperature range between -5°C and +50°C for use in demanding environments
• Set comes with a trolley for convenient transportation

• HVAC systems
• Office buildings
• Medical facilities
• Laboratories

This versatile replacement hood has a broad measuring range between 40 and 4000m³/h, which means you can rely on it for both low and high-volume measurements.