The Sauermann DBM 620 Air Flow Meter is a multipurpose electronic air balancing instrument primarily used for efficiently taking direct air volume readings from air vents.

The DBM 620 comes with 1 base including the measurement grid and a temperature and hygrometry probe, 1 removable measuring unit with Bluetooth connection, 1 hood of 2 x 2 ft (610 x 610 mm) with flow straightener and foldable frame, 1 sheath including the 4 frame fixing rods, 2 x 0.80 m of silicone tube, replacement hinges for frames, 1 transport case and 1 calibration certificate.

Airtight Hood
The DBM 620 air flow meter comes in standard with a 2 x 2 ft (610 x 610 mm) hood. The hood is airtight and has a transparent viewing window that allows the user to see through the vent to ensure the hood is in the proper position.

Measurement grid
The measurement grid is attached to the base and measures 24 different points throughout the surface of the flow area. Measurement is performed using a differential pressure sensor calibrated in atmospheric pressure and temperature and compensated in temperature.

Operating principles
The DBM 620 housing communicates with the smartphone or tablet via Bluetooth®. This allows measured values reading and viewing of reports directly on your mobile device screen, via the dedicated SmartKap mobile application.