Fly-1b Led Display Balometer/ Air Flow Capture Hood - Laboratory Furniture - AliExpress
Amazon.com: Air Flow Capture Hood, Analog, 2 x 2 Hood : Appliances
ABM-HOOD (EasyHood) | Air Flow Capture Hood | CPS Products
testo 420 I Balometer Kit with airflow capture hood for large air supplies and returns and swirl outlets I With Bluetooth and optional NIST certification: Amazon.com: Industrial & Scientific