1. Home
    2. testo 521-2

    testo 521-2 - Differential pressure measuring instrument 0 to 100 hPa (accuracy ±0.1% of f.v.)

    0560 5211
  1. Integrated differential pressure sensor with an accuracy of 0.1% of f.v.
  2. Calculation of flow velocity and volume flow via pitot tube (optional)
  3. Multi-point and timed mean calculation
  4. 2 probe inputs for additional pressure and temperature probes
    5. The high precision testo 521-2 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for pressure drop on filters, for instance, checking fans and extractors, or for pitot tube measurements.

    The highly accurate differential pressure meter, testo 521, with an internal pressure sensor from 0 to 100 hPa, is ideal for pitot tube measurements in the range of 5 to 100 m/s. The testo 521 is available in 2 accuracy classes, the testo 521-1 with an internal pressure sensor with Class 0.2, and the testo 521-2 with an internal pressure sensor with Class 0.1.


    In the case of velocity speeds in the range of 1 to 12 m/s, you can carry out accurate measurements using the 100 Pa probe, which can be attached externally.


    The measurement data can be saved according to location and analyzed on your PC, or printed on site on your testo printer.

    testo 521-2 differential pressure measuring instrument, including calibration protocol and batteries

    Customers who viewed this product also viewed

  5. Customers who viewed this product also viewed
    testo 440 Delta P Air Flow ComboKit 1 with Bluetooth®
    testo 440 dP - Air flow ComboKit 1 with Bluetooth and delta P
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts or at ventilation outlets
    :
    0563 4409
    1
  6. Customers who viewed this product also viewed
    testo 440 Delta P Air Flow ComboKit 2 with Bluetooth®
    testo 440 dP - Air flow ComboKit 2 with Bluetooth and delta P
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts, at ventilation outlets and in work rooms
    :
    0563 4410
    1
  7. Customers who viewed this product also viewed
    testo 510 Set
    testo 510 - Digital manometer
    • Pocket-sized temperature-compensated differential pressure measurement
    • Illuminated display
    :
    0563 0510
    1
  8. Customers who viewed this product also viewed
    testo 420
    testo 420 - Differential pressure manometer
    • Differential pressure measurement, useful for checking filters in air conditioning and ventilation systems
    • Calculate flow velocity and volume flow using an optional pitot tube
    :
    0560 0420
    1
  9. Customers who viewed this product also viewed
    testo 440 dP Air velocity and IAQ measuring instrument including differential pressure sensor
    testo 440 dP - Air velocity and IAQ measuring instrument with differential pressure sensor
    • A measuring instrument for all climate-related parameters
    • Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters
    :
    0560 4402
    1
  10. Customers who viewed this product also viewed
    testo 400 Universal IAQ instrument
    testo 400 - Universal Air Flow and IAQ Instrument
    • A measuring instrument for all climate-related parameters
    • Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55
    :
    0560 0400
    1
  11. Customers who viewed this product also viewed
    testo 512-1
    testo 512-1 - Digital differential pressure measuring instrument with App connection
    • Simple, fast and precise differential pressure measurement (0 to 200 hPa) for checking filters and for Pitot tube measurement in the ventilation duct
    • Reliable measurement results due to position-independent differential pressure sensor with high accuracy
    :
    0563 1512
    1

    12. General technical data

    Display type
    LCD
    Display function
    7 segment display and point matrix
    Display update
    2x per second, in fast measurement 4x per second
    Power supply
    Battery/Rechargeable battery,Mains unit 12 V
    Interface
    RS232
    Memory
    100 kB; 25,000 measuring values