Differential pressure measurement at the filter

Air flow measurements in ventilation ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms – the testo 480 temperature and humidity meter comes with a wide range of optional sensors that allow you to measure, analyze, and log these and a variety of other parameters with only one device.

• High quality optional sensors for measuring air flow / temperature / humidity / pressure / degree of turbulence / heat radiation / CO₂ / illumination intensity / PMV / PPD / WBGT

• High precision, integrated pressure difference sensor included

• Pro-software for easy and efficient analysis and logging included

• Intelligent calibration concept

The testo 512 differential pressure meter is available in four models. This model has a measuring range of 0 to 0.29 psi, and is ideal for measuring pressure differences at filters, and for carrying out pitot static tube measurements in air ducts at air flow speeds between 16 and 180 fps.

• 8 measurement units to choose from: psi, kPa, hPa, Pa, mmH₂O, mmHg, inH₂O, inHg

• 2 air flow units to select from: fpm, m/s

• Integrated density compensation

• Backlit display / min and max values / hold function

The testo 521-3 high precision differential pressure measuring instrument easily determines even the smallest differential pressures (up to +2.5 hPa). Its high accuracy and a resolution of 0.1 Pa make the instrument ideal for differential pressure measurements, in clean rooms, or for flue inspections.

• Integrated temperature-compensated differential pressure sensor with accuracy of up to ± 0.5 Pa

• Calculation of the flow velocity and the volume flow via Pitot tube (optional)

• Direct zeroing of the display values of pressure probes

• 2 probe inputs for additional pressure and temperature probes
   

Use the CEC compliant testo 420 differential pressure measuring instrument to carry out simple, efficient tests on filters. You can also use this instrument in conjunction with a pitot tube to easily measure flow velocity and volume flow in ventilation ducts.

• Differential pressure measurement, useful for checking filters in air conditioning and ventilation systems

• Calculate flow velocity and volume flow using an optional pitot tube

• Save measurement data for analysis and documentation

• Match with a Testo CEC compliant air flow capture hood to measure volume flows at supplies and returns (0563 4200)

Pressure probe, 1.45 psi, measures differential pressure and velocities (in connection with Pitot tube)

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument – the testo 440 dP. This multifunction measuring instrument is intuitive and easy to use, thanks to its integrated differential pressure sensor and clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality, and carrying out comfort level measurements are all possible without the hassle of juggling different devices and tools. Enjoy the versatility of using your choice of high quality digital probes with just one measuring instrument.

• Intuitive: Clearly structured measurement menus for volume flow, K factor, degree of turbulence, heating/cooling output, mold detection, and long-term measurement, such as CO₂

• Wireless: Optional Bluetooth probes for extra convenience when measuring, and less cable clutter in your instrument's case (probes sold separately)

• Clear and Reliable: Large graphic display with parallel display of 3 readings, as well as internal memory for data storage and USB port for data export

• Includes a differential pressure sensor for pitot tube measurements and monitoring filters