Handheld Anemometers, Thermo/Hygrometers

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Item# (PN): 471B_473B_485B Shipping and Payment
Dwyer Instruments Anemometers with various probes - AP1 thermo-anemometer, VP1 thermo-anemometer (propeler 100 mm) or RP1 thermo-hygrometer. Visible in any condition due to high contrast and backlit LCD display. Able to store up to 99 readings for later evaluation. More

Handheld anemometers DwyerOmega are versatile and compact units that quickly and easily measure a variety of air quality standards in imperial or metric units. Model 471B-1 is provided with the Dwyer AP1 thermo anemometer probe and is able to measure air velocity or volumetric air flow, as well as air temperature. Model 473B-1 is provided with Dwyer VP1 (100 mm) vane thermo anemometer probe and is able to measure air velocity or volumetric air flow, as well as air temperature and humidity. Model 485B-1 is provided with Dwyer RP1 thermo hygrometer probe and is able to measure relative humidity and air temperature.

AP1, VP1, and RP1 probes are automatically recognized when plugged into the handheld, and can be interchanged without needing to adjust calibration.
Note: the lengths listed in the configurator are the lengths of the working part of the probe, the total length is greater.

Product Applications:

Residential balancing, Commercial air balancing, HVAC inspections, Industrial process and dust collection system verification.

SPECIFICATIONS:

Service: dry, clean air
Temperature Limits Process: -29 to 100°C; Ambient: -15 to 51°C
Display: 4.5 digit backlit display
Air Velocity Range: 471B-1: 0.23 to 30 m/s; 473B-1: 0.32 to 25 m/s; 485B-1: N/A
Air Velocity Accuracy: 471B-1: ±3% FS; 473B-1: ±1.5% of reading ±0.1 m/s [0.25 to 10 m/s], ±1.5% of reading ±0.2 m/s [10 to 20 m/s], ±1.5% of reading ±0.3 m/s [20 to 25 m/s]; 485B-1: N/A
Volumetric Air Flow Range: 471B-1/473B-1: 19,999 in selected flow units; 485B-1: N/A
Temperature Range: 471B-1: -40 to 100°C; 473B-1: -29 to 100°C; 485B-1: -28 to 60°C
Temperature Accuracy: 471B-1: ±0.28°C [0 to 50°F], ±0.83°C [Rest of range]; 473B-1/485B-1: ±0.5°C @ 25°C
Relative Humidity Range: 471B-1: N/A; 473B-1/485B-1: 0 to 100% RH
Relative Humidity Accuracy: 471B-1: N/A; 473B-1/485B-1: ±2% RH @ 25°C [10 to 90% RH]
Power Requirements: 9 V alkaline battery, user replaceable
Weight: 471B-1: 454 g; 473B-1: 521 g; 485B-1: 454 g

Complete informations can be found in the spec sheet (PDF), see the "Download" section.

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