SERIES 471B – Furneco

DWYER 471B DIGITAL THERMO-ANEMOMETER | HANDHELD AIRFLOW & TEMP METER

The Dwyer Model 471B is a dual-function test instrument that quickly measures air conditions in imperial or metric units. It features a rugged, extruded aluminum housing to protect sensitive electronics and a stainless steel probe with etched depth marks for accurate duct traverses. The device includes an integral sliding cover to protect sensors when not in use and can store up to 99 readings for later retrieval.

PRODUCT USES:

HVAC Balancing: Measuring airflow at various locations within a building for system optimization.
Duct Traverses: Performing detailed velocity profile measurements in ventilation shafts.
Testing and Balancing (TAB): Ensuring compliance with air quality and flow standards.
Cleanroom Monitoring: Verifying low-velocity laminar flow in sensitive environments.

Technical Sheets

Instruction Manual

Catalog Page

Specifications

DWYER 471B DIGITAL THERMO-ANEMOMETER | HANDHELD AIRFLOW & TEMP METER – KEY SPECIFICATIONS

Air Velocity Range: 0 to 6000 FPM (0 to 30 m/s).
Temperature Range: -40 to 212°F (-40 to 100°C).
Accuracy (Velocity): ±3% FS within a 40 to 90°F range.
Accuracy (Temperature): ±0.5°F (±0.28°C) from 32 to 122°F.
Data Storage: Up to 99 individual readings.
Probe: 8″ (203 mm) stainless steel probe with a 6 ft (183 cm) extended cable.
Display: 4.5 digit high-contrast backlit LCD.
Power: 9V alkaline battery (included).

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