HVAC Testing Equipment Rentals
Measure airflow, velocity and pressure — capture hoods for grilles, the VelociCalc for ducts and rooms, the HM685 for hydronic systems — from $55/day.
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HVAC Testing Equipment to Rent
Top pick
Probes and add-ons
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Capture hood vs ventilation meter: which do you need?
QUICK ANSWER
Rent the EBT731 for airflow at supply and return grilles, the 6200D LoFlo for low volumes, the VelociCalc 9565 for velocity and pressure, and the HM685 for hydronic systems.
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- Best for
- Diffuser & grille airflow
- Class
- Capture Hood — Standard-Flow Balometer
- Measurement range
- Airflow: 25–2,500 ft³/min (42–4,250 m³/h), supply and return; Velocity: 25–15,500 ft/min (0.125–78 m/s) with pitot probe, 25–5,000 ft/min (0.125–25 m/s) with air flow probe, 25–2,500 ft/min (0.125–12.5 m/s) with velocity matrix; Differential Pressure: ±15 in. H2O (3,735 Pa), 150 in. H2O max safe operating pressure; Absolute Pressure: 15–40 in. Hg (356–1,016 mm Hg); Relative Humidity: 5–95% RH
- Est. battery run time
- 12hrs min
- Best for
- Velocity & pressure
- Class
- Multiparameter Ventilation Meter
- Measurement range
- Air Velocity (thermoanemometer probe): 0–9,999 ft/min (0–50 m/s); Air Velocity (pitot or Airflow Probe 800187): 250–15,500 ft/min (1.27–78.7 m/s); Temperature: 14–140°F (–10 to 60°C) with 964, 966 or 982 probe; Relative Humidity: 5–95% RH; Static/Differential Pressure: –15 to +15 in. H2O (–3,735 to +3,735 Pa); Barometric Pressure: 20.36–36.648 in. Hg (517.15–930.87 mm Hg); CO2 (Probe 982): 0–5,000 ppm; CO (Probe 982): 0–500 ppm
- Est. battery run time
- 12-15hrs
- Best for
- Low-volume airflow
- Class
- Capture Hood — Low-Flow Balometer
- Measurement range
- 10–500 CFM (17–850 m³/h, 4.7–236 L/s)
- Est. battery run time
- 10hrs min
- Best for
- Hydronic systems
- Class
- Hydronic Differential Pressure Manometer
- Measurement range
- Differential Pressure: ±300 psi (±2068 kPa); Gauge Pressure: -20 to 300 psi (-138 to 2068 kPa); Flow: up to 99,999 USGPM (calculated via Cv/Kv valve flow factor); Temperature Probe: -40 to 250°F (-40 to 121°C)
- Est. battery run time
- 12-18hrs
Doesn't fit
✓ = has it· HOOD = diffuser & grille airflow· WATER = hydronic (water) systems. Battery times are estimates.
| Instrument | Best for | TypeWhat the instrument is | Est. battery run timeCovers a full day of readings | Starting at |
|---|---|---|---|---|
| Air sideAirflow, velocity and pressure in ducts and rooms. | ||||
| Top pick EBT731 |
Diffuser & grille airflow | Capture Hood — Standard-Flow Balometer | 12hrs min |
$185.00 / day Rent → |
| VelociCalc 9565 | Velocity & pressure | Multiparameter Ventilation Meter | 12-15hrs |
$55.00 / day Rent → |
| 6200D LoFlo | Low-volume airflow | Capture Hood — Low-Flow Balometer | 10hrs min |
$125.00 / day Rent → |
| Water sidePressure and flow in hydronic systems. | ||||
| HM685 | Hydronic systems | Hydronic Differential Pressure Manometer | 12-18hrs |
$175.00 / day Rent → |
Specs checked Oct 2026. New to air velocity? Read the air velocity guide
Charges stop when UPS or FedEx scans your return How renting works →
HVAC testing questions
All rental FAQs →The EBT731 measures 25 to 2,500 ft³/min at supply and return grilles. The 6200D LoFlo measures lower volumes, 10 to 500 CFM.
The VelociCalc 9565 stores 26,500+ samples across 100 test IDs, the EBT731 26,500 time-stamped samples, and the HM685 up to 4,000 readings. The 6200D LoFlo shows readings in real time only.
The VelociCalc 9565 and the EBT731 both read differential pressure up to ±15 in. H2O. For water systems, the HM685 reads differential pressure up to ±300 psi.
The HM685. It reads differential and gauge pressure, calculates flow from its built-in Cv/Kv valve library, and reads temperature with probes.
More about HVAC Testing
HVAC testing instruments help validate airflow, pressure, and ventilation performance so you can troubleshoot comfort complaints, verify corrective actions, and document system conditions. This is especially useful for commissioning checks, post-maintenance verification, and investigations where "it feels stuffy" needs a measurable answer. Common rentals include ventilation and pressure tools like the Velocicalc 9565-P and airflow capture tools like the EBT 731 Balometer to quantify supply and return performance. We can help you choose the right tool for the question you are trying to answer and recommend a simple measurement plan so results are consistent room to room.
This guide explains what each instrument does. Your safety professional decides which method and criteria apply to your site.
Not sure which instrument fits?
Tell us about the system and we will recommend the right setup.