Testo 420 Air Flow Capture Hood
by Testo
Last updated Mar 29, 2026 · 2 revisions
Lightweight balometer with patented flow straighteners for accurate readings at turbulent outlets, Bluetooth app streaming, and removable micromanometer.
6.9 - Good Custom · $3,419 Mobile App 8 Features
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About This Product
The Testo 420 is a professional air flow capture hood weighing under 6.4 lbs, measuring flows from 80 to 3500 m3/h. Its patented flow straightener technology improves measurement accuracy at turbulent swirl outlets. The integrated measuring unit detaches for standalone pressure, flow, and velocity measurements via Pitot tube. Multiple hood sizes from 14x14 to 36x36 inches are available, and Bluetooth connectivity enables live measurement streaming through the testo 420 app.
FSH Score Breakdown
Ease of Use 8.0
Features 7.5
Support 7.5
Value 7.0
Integrations 7.0
AI Capabilities 2.0
Customer Reviews
Features
8 features confirmed across
3categories· Showing confirmed capabilities only
Compliance & Safety4features
Flow Rate CalculatorVolume flow measurementPsychrometric CalculationsTimed and multi-point mean calculationAir BalancingAutomatic zeroing for higher accuracyAirflow CalculationsTotal volume flow calculation in CFM
Platform & Customization3features
Data ExportIn-app email function for sending reportsThird-Party IntegrationLive data feed integration with MeasureQuick AppAudit TrailOn-board 2 GB data logging
Mobile & Field Tools1feature
Bluetooth Probe IntegrationBluetooth wireless connection for remote monitoring and operation
Pricing
- Model
- Custom
- Starting at
- $3,419
- Notes
- Testo 420 (0563 4200) air flow capture hood kit. MSRP $4,022, street price ~$3,419 from TruTech Tools. NIST calibrated version: MSRP $4,179, street ~$3,552. Includes measuring instrument, flow hood base, and soft case.
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