Dwyer 473B-1 Vane Thermo-Anemometer


Dwyer Instruments

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  • For air velocity, volume and temperature measurements of clean, dry air
  • Range
    • Air Velocity: 40 to 5000 fpm (0.2 to 25 m/s)
    • Volumetric Air Flow: 19,999 in selected flow units
    • Temperature: -20 to 212°F (-29 to 100°C)
    • Relative Humidity: 0 to 100% RH
  • 8 in. (203mm) probe length
  • 28 in. cable length when retracted and 6 ft. when extended
  • 4.5 digit backlit display
  • Stores up to 99 readings for later evaluation
  • 9 V alkaline battery

The Dwyer 473B-1 vane thermo-anemometer is a handheld unit that can measure air velocity or volumetric flow, air temperature and humidity using a stainless steel 100mm vane probe (included). The 8" probe is paired with a 28" retracted cable that can be extended up to 6-feet in length. Designed for use with clean, dry air the Dwyer 473B-1 is an ideal solution for residential balancing and HVAC inspections.

The 473B-1 can measure process temperatures between -20 to 212°F and from 0 to 100% relative humidity. Additionally, air velocity can be measured from 40 to 5000 fpm and volumetric air flow up to 19,999 in selected flow units. Using a 4.5 digit backlit display, this Dwyer vane thermo-anemometer clearly displays data for real-time readings and can also store up to 99 readings for later evaluation.


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Dwyer RP1 Thermo-Hygrometer Probe
Wired probe measures humidity, temperature, dew point, & wet bulb temperatures
Dwyer VP1  Thermo-Anemometer Probe
Wired vane probe measures air velocity, flow, humidity, & temperature


Dwyer UHH-C1 Soft Carrying Case
Soft carrying case


Please consider these optional accessories.

Dwyer A-47X-BOOT Rubber Boot
Rubber boot for manometers
Dwyer A-VPX-CKIT Air Cone Kit
Air cone kit, rectangular and circular hoods, for use with the VP1/VP2