• Volume flow measurement on large supply air diffusers, HEPA filters and safety cabinets in cleanrooms
• The telescope makes it possible to carry out measurements on high ceiling diffusers
• Ideal for large surface areas
• Air flow grid dimensions: 360 x 360 mm
• MUST BE USED WITH COMPATIBLE MEASURING INSTRUMENT

Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g., testo 420, testo 400) to calculate flow velocity and volume flow. The air flow grid (360 x 360 mm) can be used over a large area and is particularly suitable for carrying out measurements on HEPA filters and safety cabinets in cleanrooms. Particularly useful: you can also use the screw-on telescope (can be extended to 1800 mm) to carry out volume flow measurements on high ceiling diffusers.