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

    Accessories for probes

  12. Accessories for probes
    Connection cable for pressure probes 0638 1740, 0638 1840, 0638 1940
      :
      0409 0202
      $ 182.00
      1
    • Accessories for probes
      No picture available
      Connection hose set, 6.5 x 3.2 ft., coiled, incl. 1/8" screw connection
        :
        0554 0441

        • Additional accessories and Spare parts

      • Additional accessories and Spare parts
        Connection cable
        Connection cable.
          :
          0430 0143
        • Additional accessories and Spare parts
          9V rech. battery for instrument
          9V rechargeable battery for instrument
            :
            0515 0025
          • Additional accessories and Spare parts
            Connection hose, silicone
            Connection hose, silicone, 16.4 ft, load up to 281 inHâ‚‚O
              :
              0554 0440
              $ 67.15
              1
            • Additional accessories and Spare parts
              Desk-top power supply
              Power supply for compact gas drier and flue gas analyzer
                :
                0554 1143
                $ 182.00
                1
              • Additional accessories and Spare parts
                Adapter to connect NiCr-Ni thermocouples and probes with open wire ends
                  :
                  0600 1693

                  • Printer and accessories

                • Printer and accessories
                  testo-Schnelldrucker IRDA mit kabelloser Infrarot-Schnittstelle
                  Compact printer, with IRDA technology offers fast, easy to read printouts of measurements at every job site.  Internal magnets will hold the printer to magnetic surfaces for hands free operation. *Compatible with any Testo device capable of IR or IRDA
                    :
                    0554 0549
                    $ 356.15
                    1
                  • Printer and accessories
                    Spare thermal paper
                    Spare thermal paper, permanent ink
                      :
                      0554 0568
                      $ 39.10
                      1
                    • Printer and accessories
                      External fast charger
                      External recharger incld. 4 Ni-NMH rechargeable batteries with built-in international power supply - 100-240 V, 300 MA, 50/60 Hz, 12 VA/instrument
                        :
                        0554 0610

                        • Software and Accessories

                      • Software and Accessories
                        RS232 cable
                          :
                          0409 0178
                          $ 104.00

                          • Transport Case

                        • Transport Case
                          TopSafe
                          TopSafe (protective case)
                            :
                            0516 0446