Scales are lithograph printed on aluminum and epoxy coated.
For stationary applications, the Mark II air velocity meters can be easily mounted on any vertical surface with the two screws provided. A built in spirit level simplifies leveling. Just fill the reservoir, adjust fluid level to zero, connect the Pilot tube, and it is ready for operation. For portable applications, the Model A-612 portable stand is available for Modeis 27 and 28. Metric ranges are also available.