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

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• Precise 2-point laser with 10:1 optics for exact, error free measurements
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TESTO 315-3 BLUETOOTH - CO AND CO2 METER FOR AMBIENT MEASUREMENTS

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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
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• Adjustable emission factor 0.1 to 1.0

TESTO 317-2 - GAS LEAK DETECTOR WITH OPTICAL TREND DISPLAY

• Display of gas concentration via bar display
• Self-test of sensor after switching on
• Pitch of alarm rises along with gas concentration
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TESTO 405 - POCKET-SIZED THERMAL ANEMOMETER

• Volume flow calculation of up to 99,990 m3/h
• Easily read data at any angle with rotating display
• Telescopic handle up to 300 mm
• Ideal for measurements in ducts

TESTO 440 - AIR VELOCITY AND IAQ MEASURING INSTRUMENT

• Intuitive: Clearly structured measurement menus for volume flow, 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 Overview: Large graphic display with parallel display of 3 readings
• Reliable: Internal memory for data storage and USB port for data export

TESTO 160 TH - WI-FI DATA LOGGER WITH INTERNAL TEMPERATURE AND HUMIDITY SENSORS

• Data logger with internal temperature and humidity sensors, small footprint, and unobtrusive design
• Optional paintable logger cover helps conceal the logger in an exhibit
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• Simple to install, integrate, and operate