




Dwyer Instruments MAFS-38 | Averaging air flow sensor | 38" probe
The Metal Averaging Flow Sensor, Model MAFS-38, Series MAFS, is perfect for use with Dwyer® precise air velocity gauges, transmitters, and switches. The Series MAFS provides a precise measurement of the velocity pressure in a duct by using equally distributed total and static pressure measuring points.

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- Specifications
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Accuracy | 400 to 9000 FPM (45.7 m/s): +/-2% FS +/-3% FS for 6" and 48" length models |
Approvals | Meets the technical requirements of EU Directive 2011/65/EU (RoHS II) |
Connection | Process: Dual barb for 3/16" or 1/4" ID tubing |
Design Flow | Maximum: 12,000 fpm (60.91 m/s) |
Design Flow | Minimum: 400 fpm (2 m/s) |
K-Factor | 0.81, 0.80 for 6" (160 mm) and 48" (1200 mm) lengths, 4" (100 mm) length=0.82 |
Manufacturer | Dwyer Instruments |
Material | Wetted: Aluminum AA6063 |
Maximum operating temperature | 400°F (204°C) Gasket: -31 to 230°F (-35 to 110°C) |
Probe Length | 38 |
Type | Metal Averaging Flow Sensor |
- The design of the blade minimizes airstream disturbance.
- Aluminum structure that is lightweight.
- Square or rectangular ducts with flange mount.
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