Description
Dwyer 2001AV Magnehelic® Differential Pressure Gage — Dual Scale Air Velocity
The Dwyer 2001AV is a Magnehelic® differential pressure gage engineered for accurate, reliable measurement of both differential pressure and air velocity in HVAC and mechanical systems. Featuring a dual-scale display, this gage simultaneously reads differential pressure (0–1.0″ W.C.) and air velocity (500–4,000 FPM), making it an ideal single-instrument solution for air handler balancing, filter monitoring, duct velocity checks, and ventilation system diagnostics.
Built for versatility, the 2001AV accommodates both flange and flush mounting configurations, allowing installation in panels, control boards, or directly on ductwork. The 4″ diameter dial face provides clear, easy-to-read indications from a distance, while the 1/8″ Female NPT process connection ensures compatibility with standard HVAC pressure taps and pitot tube setups. Suitable for use with air and non-combustible gases, this gage is a trusted choice for commercial and industrial HVAC applications.
Key Features
- Dual-scale display: 0–1.0″ W.C. differential pressure and 500–4,000 FPM air velocity
- Magnehelic® design — no liquid fill, no moving parts to wear or clog
- 4″ diameter dial face for clear, at-a-glance readings
- 1/8″ Female NPT process connection for standard HVAC compatibility
- Flange or flush mount options for flexible installation
- Compatible with air and non-combustible gases
- Ideal for filter monitoring, air balancing, and duct velocity measurement
Specifications
- SKU: 2001AV
- Brand: Dwyer Instruments
- Type: Magnehelic® Differential Pressure Gage
- Pressure Range: 0–1.0″ W.C.
- Air Velocity Range: 500–4,000 FPM
- Dial Face Diameter: 4″
- Process Connection: 1/8″ Female NPT
- Mounting: Flange or Flush Mount
- Media: Air or Non-Combustible Gases
Common Applications
- HVAC air handler and AHU performance monitoring
- Air filter differential pressure measurement
- Duct air velocity verification
- Ventilation system balancing and commissioning
- Clean room and laboratory airflow monitoring
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