For measuring air volume in clean rooms and offices! Suitable for measuring large supply and exhaust vents.
The testo 420 is a lightweight hood air flow meter weighing 2.9 kg. It can be mounted on a dedicated tripod. To accurately measure air flow even in large ventilation ducts, it is equipped with a straightener inside. Additionally, with the built-in differential pressure sensor, it can also be used as a differential pressure gauge by connecting a pitot tube. 【Features】 ■ The straightener smooths out turbulence inside the hood ■ Lightweight at 2.9 kg, comes with a convenient carrying cart ■ The main unit can be removed for differential pressure measurement ■ Maximum and minimum value display ■ Memory function (can continuously record for up to 15 minutes), can be connected to a PC *For more details, please download the PDF or feel free to contact us.
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【Other Features】 ■ Wind speed calculation via Pitot tube connection ■ Automatic zero adjustment function to prevent zero point drift *For more details, please download the PDF or feel free to contact us.
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[Usage] ■ Measurement of large supply and exhaust vents in offices, factories, commercial facilities, clean rooms, etc. *For more details, please download the PDF or feel free to contact us.
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Testo SE & Co. KGaA is a German global company with 37 local subsidiaries and affiliated companies worldwide, and it forms a network of agents in other regions. Since its establishment in 1957, it has focused on the research and development of portable environmental measuring instruments, releasing products that meet market needs. By proposing high-precision environmental measuring instruments and data management solutions, it has received high acclaim in a wide range of fields, including energy conservation, safety management, environmental protection, and food & healthcare. In Japan, it not only sells measuring instruments but also has established service centers to provide prompt maintenance and the issuance of calibration certificates.