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.

Features:

Integrated differential pressure sensor with an accuracy of 0.2 % of f.v.
Calculation of the flow velocity and the volume flow via Pitot tube (optional)
Multi-point and timed mean calculation
2 probe inputs for additional pressure and temperature probes

More products TESTO

TESTO 206 PH2 - INSTRUMENT KIT

• pH2 probe head for semi-solid food
• Automatic full-scale recognition
• Maintenance-free gel electrolyte
• Leak-proof storage gel

TESTO 104-IR - DUAL PURPOSE IR AND PENETRATION THERMOMETER

• Precise 2-point laser with 10:1 optics for exact, error free measurements
• Super rugged design, built for extreme, everyday use
• Large, backlit, easy to read display
• Included color strips aid in preventing cross contamination concerns

TESTO 205 - ONE-HAND PH/TEMPERATURE MEASURING INSTRUMENT

• Ideal for measuring the pH value and temperature in semi-solid media, e.g. in meat
• Combined pH measuring tip with temperature probe - can be changed by the user
• Maintenance-free pH measurement thanks to gel electrolyte
• Two-line, illuminated display: pH value and temperature at a glance

TESTO 184 H1 - TEMPERATURE AND HUMIDITY USB TRANSPORT DATA LOGGER WITH LCD DISPLAY

• Long battery life of up to 500 consecutive days of use with a large memory capable of storing 64,000 readings
• Replaceable battery for unlimited use
• PDF Reports allow for quick access to non-corruptible documentation - without installed software!
• NFC (Near Field Communication) allows for easy access of documentation with a compatible device

TESTO 526-1 - DIFFERENTIAL PRESSURE MEASURING INSTRUMENT 0 TO 2000 HPA (ACCURACY &PLUSMN;0.1% OF F.V.)

• Temperature-compensated differential pressure sensor
• Multi-point and timed mean calculation
• Recording of measurement data with freely selectable measuring rate
• 2 probe inputs for pressure and temperature

TESTO 324 BASIC SET

• Load and tightness test
• Servicability test
• Gas pressure regulator for identifying errors in pressure reducer
• Drinking water pipes according to ZVSHK (EN 806-4)
• Waste water pipes according to DIN EN 1610

TESTO 445 - SERVICE INSTRUMENT FOR AIR CONDITIONING / VENTILATION SYSTEMS

• Multi-function climate measuring instrument: measure up to 6 measurement parameters at the same time
• Internal reading memory for up to 3,000 readings
• Automatic allocation of the duct cross-section to the measuring location (max. 99 measuring locations)
• Automatic mean value calculation and determination of the volume flow

TESTO 440 - INDOOR COMFORT COMBOKIT WITH BLUETOOTH

• Accurate measurement results, thanks to air density compensation via integrated absolute pressure measurement
• Measuring range: 0 to 10,000 ppm, 14 to 122 °F, and 5 to 95% RH
• The Bluetooth handle makes it more convenient to carry out your measurements and guarantees less cable clutter in your case - it transmits readings to the testo 440, from up to 65 feet away
• Practical button on the handle - for storing individual readings
• Versatile - the universal handle can be connected to all probe heads, so you can take care of more applications, and use less equipment

TESTO 477 - LED STROBOSCOPE

• Very high measurement range (up to 300,000 flashes per minute)
• Very high illumination (up to 1500 Lux)
• Long operating times (battery power for up to 5 h)
• Trigger input and output (for connectivity to external systems and control via external sensor)

TESTO 770-3 - HOOK CLAMP AND POWER METER WITH BLUETOOTH

• Unique hook-on function separates and grabs wires, without using your hands, and the retractable post makes hook release in tight spaces fast and easy
• Bluetooth, coupled with the free testo Smart Probes app, works with smartphones and tablets for remote viewing, data logging, and report creation
• Real-time power measurements (Watts), with simultaneous power factor indication