Airside · GUIDE 10
Static-pressure and airflow tools
Pressure is not airflow, but the right pressure kit tells you where the system is losing performance.01
REAL-WORLD SHORTLIST
Good, better, best picks
Typical U.S. street-price ranges are planning estimates, not quotes. Verify the exact model, ratings, included accessories and current price before buying.
Good$45–$80
Dwyer
460 Air Meter
Best forTechs learning basic duct velocity checks.
PROS
- No batteries
- Simple
- Useful cross-check
DRAWBACKS
- Limited resolution
- Not a full traverse solution
Better$130–$200
Testo
testo 510i Pressure Probe
Best forResidential techs wanting app-based static readings.
PROS
- Compact wireless format
- Fine resolution
- App reporting
DRAWBACKS
- Phone required
- Probes and tubing extra
Best$220–$320
Fieldpiece
JL3KM2 Dual-Port Manometer Kit
Best forAirside techs measuring total static and component drops.
PROS
- Two wireless probes
- Live comparison
- Job Link documentation
DRAWBACKS
- Higher cost
- Fan data still required for CFM
02
BUY FOR THE JOB
What to look for
- ✓Resolution and range suited to low HVAC static pressures
- ✓A dependable zero function and documented accuracy
- ✓Straight and angled static probes for safe, representative test locations
- ✓Durable tubing, tees, magnets and port plugs for repeatable setup
- ✓Airflow instruments supported by a clear traverse or capture procedure
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BEFORE YOU TRUST IT
Field-use checks
- 01Locate coils, heat exchangers, wires and tubing before drilling.
- 02Zero the manometer and record signed return and supply readings.
- 03Use the equipment manufacturer’s defined external-static boundary.
- 04Compare pressure with the correct blower table and isolate component drops before recommending duct changes.
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RED FLAGS
What to avoid
- Calling static pressure “CFM” without valid fan data
- Testing at convenient but unrepresentative locations
- Using a single-point velocity reading as if it were a complete duct traverse
PRIMARY REFERENCE