The Testo 511 Absolute Pressure Meter is a compact handheld pressure instrument designed for accurate absolute pressure, barometric pressure and altitude measurement. Built for HVAC, ventilation, laboratory and production applications, it is especially useful for absolute pressure compensation during Pitot tube airflow measurements.
With ±3 hPa accuracy, eight selectable pressure units and a backlit display, the Testo 511 gives technicians a practical pocket-sized instrument for pressure compensation, barometric air pressure calculation and altitude difference checks. By entering the local altitude above sea level, the instrument converts absolute pressure into barometric air pressure for easier onsite measurement.
Key Features
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Compact absolute pressure meter for HVAC and ventilation work
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Measures absolute pressure from 300 to 1200 hPa
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Accuracy of ±3 hPa
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Ideal for pressure compensation during Pitot tube airflow measurements
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Calculates barometric air pressure by entering site altitude
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Suitable for barometric altitude measurement between two points
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Eight switchable pressure units
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Backlit display for easier reading in poor light
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Pocket-sized design with protective cap and belt holder
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Simple handheld operation for field service use
Specifications
| Item | Specification |
|---|
| Brand | Testo |
| Model | Testo 511 |
| Product Number | 0560 0511 |
| Product Type | Absolute Pressure Meter |
| Sensor Type | Absolute pressure probe |
| Measuring Range | 300 to 1200 hPa |
| Accuracy | ±3 hPa |
| Resolution | 0.1 hPa |
| Selectable Units | hPa, mbar, Pa, mmH₂O, mmHg, inH₂O, inHg, psi, m, ft |
| Measurement Rate | 0.5 seconds |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -40°C to +70°C |
| Protection Class | IP40 |
| Battery Type | 2 × AAA batteries |
| Battery Life | Approx. 200 hours without display illumination |
| Dimensions | 119 × 46 × 25 mm |
| Weight | 90 g including batteries and protective cap |
Kit Includes
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1 × Testo 511 absolute pressure meter
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Protective cap
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Belt holder
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Batteries
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Calibration protocol
Applications
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Absolute pressure measurement
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Barometric pressure calculation
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Barometric altitude measurement
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Pitot tube airflow measurement compensation
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Ventilation duct testing
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Laboratory pressure checks
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Production and process pressure measurement
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HVAC commissioning and diagnostics
The Testo 511 — 0560 0511 gives technicians a small, accurate and easy-to-use absolute pressure meter for HVAC airflow compensation and barometric pressure work. With ±3 hPa accuracy, multiple pressure units and a pocket-sized body, it is a practical addition to any professional test instrument kit.
