Construction is simple with virtually indestructible molded white styrene-acrylonitrile
housing, indicating tube and fluid wells, molded ABS knobs and zero adjust plunger, shock
mounted glass level vial and leak proof “ O” ring seals. 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 pitot tube, and it is ready for
operation. For portable applications, the Model A-612 portable stand is available for Models
27 and 28.
A molded plastic swing-out stand and leveling screw for user installation are provided with
Models 40-1-AV and 41-2-AV which also feature rapid shutoff tubing connectors and builtin
over pressure traps.
Additional standard accessories include plastic connection tubing, mounting screws, 3/ 4
oz. bottle of indicating fluid and instructions. Metric ranges are also available.
Model 40-AV – Shown with standard swing-out
stand and leveling screw installed.
OEM Specials— All models of the Dwyer® Mark II molded plastic air velocity meters
can be supplied with your logo or special scale in OEM quantities. Consult factory