Model 471B Thermo-Anemometer Test Instrument

Measures Air Velocity or Air Volume and Temperature Simultaneously

The Model 471B Thermo-Anemometer Test Instrument is a versatile dual function unit that quickly and easily measures air velocity or volumetric flow as well as air temperature in imperial or metric units. A stainless steel probe is included, which has a comfortable hand grip and etched insertion depth marks. The extruded aluminum housing fully protects electronics, yet is lightweight and comfortable to hold.

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Product Applications

Duct traverses
HVAC inspections
Testing and balancing

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

COVID-19 Update: Due to high customer demand, lead time on some products may be up to two weeks. While this is a developing health situation, we are working continuously to take the necessary measures to ensure that the products you need are available with minimal interruption.

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Model	Description	Usually Ships*	Price	Order
471B-1 Ships: Next Day Price: $406.00	Digital thermo-anemometer, includes 9V battery, sensing probe, wrist strap, soft carrying case & instructions	Next Day*	$406.00	Order

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Specifications

Service:: Air velocity and temperature of clean, dry air.
Temperature Limits:: Process Air Velocity: -20 to 212°F (-29 to 100°C); Process Temperature: -40 to 212°F (-40 to 100°C); Ambient: 5 to 125°F (-15 to 51°C).
Display:: 4.5 digit LCD.
Resolution:: 0.1%, 0.1°F/°C.
Range Air Velocity:: 0 to 6000 FPM (0 to 30 m/s).
Accuracy Air Velocity:: ±3% FS within temperature range of 40 to 90°F (4 to 32°C). -TAB option: ±5% of reading, not less than ±1.6 FPM (0.5 m).
Range Volumetric Air Flow:: 19,999 in selected flow units.
Range Temperature:: -40 to 212°F (-40 to 100°C).
Accuracy Temperature:: ±0.5°F (±0.28°C) from 32 to 122°F (0 to 50 °C); ±1.5°F (±0.83°C) from -40°F to 32°F (-40 to 0°C) & 122 to 212°F (50 to 100°C).
Probe Length:: 8" (203 mm) insertion.
Cable Length:: 28" (71 cm) retracted, 6 ft (183 cm) extended.
Power Requirements:: 9 V alkaline battery, installed non-functional, user replaceable.
Weight:: 16 oz (454 g).
Agency Approvals:: CE.

Features

Compatible with Dwyer RP1 thermo-hygrometer and VP1 100 mm vane thermo-anemometer probes (sold separately)
High contrast and backlit LCD for visibility in any condition
Able to store up to 99 readings
Integral sliding cover protects probe sensors when not in use
Built-in volumetric air flow calculations

Accessories

Model Number	Description	Usually Ships*	Price	Order
AP1	Thermo anemometer air velocity & temperature probe with coiled cable, 8" insertion length	Next Day	$213.00	Order
A-47X-BOOT	Rubber boot for manometers (manometer not included).	Next Day	$13.50	Order
AP1-18	Thermo anemometer air velocity & temperature probe with coiled cable, 18" insertion length	1-2 Weeks	$229.00	Order
AP1-24	Thermo anemometer air velocity & temperature probe with coiled cable, 24" insertion length	Next Day	$234.00	Order
AP1-36	Thermo anemometer air velocity & temperature probe with coiled cable, 36" insertion length	1-2 Weeks	$245.00	Order

Videos

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Model Chart

EXAMPLE	471B	1	NIST	471B-1-NIST, 471B Digital Thermo Anemometer, 0 to 6000 FPM (0 to 30 m/s) range, NIST calibrated
RANGE		1		0 to 6000 FPM (0 to 30 m/s)
OPTIONS			NIST	NIST Traceable Calibration Certificate