




Dwyer Instruments 8904 | Integral vane thermo-anemometer
Take temperature and air velocity measurements simultaneously with the Model 8904 Integral Vane Thermo-Anemometer. The large 1.3" (34 mm) display makes readings easy to see for consumers. Wind speed units that can be chosen by the user include mph, km/hr, knots, ft/min, and m/sec. A built-in sensor also records the outside temperature in degrees Fahrenheit or degrees Celsius. Features of the Model 8904 include an RS-232 interface setup, data hold, and the capacity to record the minimum, maximum, and average readings on a single point. Additionally, the units may store and average data for up to two hours, showing the continuous running average. A sturdy carrying bag, battery, and instruction manual are included with the model 8904. Energy audits, balancing applications, and HVAC inspections are the perfect uses for this small meter.

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- Specifications
- Features
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Air Velocity | Accuracy: +/-2% of reading +/-0.2 m/s |
Air Velocity | Range: 14 to 122°F (-10 to 50°C) |
Air Velocity | Range: 80 to 5900 ft/min (0.4 to 30 m/s) |
Air Velocity | Resolution: 1 ft/min (0.01 m/s) |
Air Velocity | Response Time: 1 second |
Approvals | METER: CE |
Battery Life | METER: 100 hours |
communication | METER: Serial Communications - 2400 bps, 8 data bits |
Display | METER: 1.3 x 1.6" (34 x 40 mm) |
Power | METER: 9 V alkaline battery, included, user replaceable |
Temperature | Accuracy: +/-1°F (+/-0.6°C) |
Temperature | Resolution: 0.1°F/°C |
Temperature | Response Time: 60 seconds. |
Vanes | METER: Diameter - 2-7/8" (70 mm) |
Weight | METER: 5.3 oz (150 g) |
- The best uses for this meter are temperature, refrigerating wind flow, heat, ventilation, and air conditioning.
- Features a sizable 1.3-inch display with a user-selectable wind speed.
- Data hold: Capable of logging the average, maximum, and minimum values at a single moment in time.
- Data recording: Capable of capturing and averaging up to two hours of data, with the continuous running average displayed
- RS-232 interface: An RS-232 interface can be configured.
- Accessories: Includes a battery, an instruction manual, and a durable carrying case.
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