Dwyer 477AV Handheld Digital Manometer
by Dwyer Instruments
Last updated Mar 29, 2026 · 2 revisions
Multi-function digital manometer with built-in air velocity and flow calculations, ideal for Pitot tube duct traverses and pressure testing.
Highlights
Media
www.dwyeromega.com
About This Product
The Dwyer 477AV Handheld Digital Manometer measures positive, negative, and differential pressure with 0.5% full-scale accuracy across multiple ranges from 0-1 to 0-200 inches WC. Built-in air velocity and flow calculations with up to 40 stored readings make it ideal for HVAC Pitot tube duct traverses. Features include backlit 4-digit LCD, audible/visual over-range alarms, field-calibration capability, and damping for fluctuating readings.
Capabilities
How this product is delivered and what's included out of the box.
- Mobile app
- Not available
- Free trial
- No
- Free tier
- No
- Public API
- No
- Deployment
- On Premise
FSH Score Breakdown
Ease of Use 6.5
Features 4.3
Support 5.0
Value 4.0
Integrations 4.0
AI Capabilities 1.5
Customer Reviews
Features
9 features confirmed across
4categories· Showing confirmed capabilities only
Hardware Features3features
Dual Backlit DisplayField Calibration with Adjustable Zero and SpanTouchscreen DisplayBacklit display
Reporting & Analytics2features
ReportingStores up to 40 readings with minimum, maximum and average statisticsAutomated Data Logging
Compliance & Safety2features
Airflow CalculationsCalculates and displays air velocity and volumetric air flowAir Velocity Calculation
Platform & Customization2features
Unit Conversion9 selectable English and metric engineering unitsImperial And Metric Support
Pricing
- Model
- Custom
- Starting at
- $261
- Notes
- Price varies by model/range: 477AV-00 (0-4 in wc) ~$410, 477AV-6 (0-30 psi) ~$261. Multiple models from 0-4 in wc to 0-150 psi. Accuracy: +/-0.5% FS. Measures negative, positive, and differential pressure. Built-in air velocity and flow calculations. Selectable English/metric units. Backlit display. Saves up to 40 readings. Auto-shutoff after 20 min. Field-calibratable (zero + span). Damping feature for fluctuating readings.
