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 835-H1 - INFRARED THERMOMETER AND MOISTURE METER

• Measures temperature / moisture / dew point
• Calculates surface moisture content
• Easy to follow menu guide, memory of up to 200 readings, data analysis with free to download software
• 4-point laser and 50:1 optics for precise measurements, even over long distances

TESTO 830-T1 - INFRARED THERMOMETER WITH LASER MARKING (10:1 OPTICS)

• Laser measurement point marker and large optics for exact measurement at greater distances
• Fast recording of measurement values at two measurements per second
• Hold function and display of min./max. values
• Adjustable emission factor 0.1 to 1.0

TESTO 830-T2 - INFRARED THERMOMETER WITH 2-POINT LASER MARKING (12:1 OPTICS)

• Two alarm limit values that can be defined as required
• Visual and acoustic alarm if limit value exceeded
• Min./max. value display and hold function (to record a measured value)
• Convenient one-handed operation, thanks to the ergonomic gun style design
• Clear, illuminated digital display

TESTO 176H1 - FOUR-CHANNEL HUMIDITY AND TEMPERATURE DATA LOGGER

• Parallel temperature and humidity measurement
• External temperature and humidity probes for quick, accurate measurements
• Large easy to read backlit display
• Large data memory capable of storing 2,000,000 measurements

TESTO 425 - HOT WIRE ANEMOMETER

• Min/Max/Average values make comparisons fast and easy
• Compact thermal sensor is ideal for in-duct readings
• Measures air velocity from 0 to 4000 FPM
• Bright backlit display provides easy viewing in any environment

TESTO 470 - TACHOMETER KIT

• Simple one-hand operation
• Measurement of rpm, speeds and lengths
• Storage of mean, max. and min. values as well as the last reading
• Includes accessories such as reflective markers, protective case and transport case

TESTO 316-3 REFRIGERANT LEAK DETECTOR

• Can detect all the most common cooling agents: CFCs, HFCs, FCs
• Highly sensitive - detects even the smallest leaks
• Easy-to-use one-button operation
• Complies with specifications for F gases regulations, SAE Code J1627 and DIN EN 14624:2012 standard

TESTO 872 - THERMAL IMAGER WITH APP

• Highest image quality: IR resolution of 320 x 240 pixels, via integrated testo SuperResolution Technology 640 x 480 pixels
• Precise measurement: thermal sensitivity of 0.06°C
• Smart and wireless: use your mobile device with the free testo Thermography App and wirelessly transmit readings from the testo 770-3 clamp meter and the testo 605i humidity measuring instrument (both available separately)
• Innovative functions, such as testo ScaleAssist and testo ?-Assist for comparable, error-free thermal images

BASE - FOR SAVERIS 868 MHZ

• Up to 150 probes can be connected
• Graphical display, 4 control keys
• Interfaces: radio, Ethernet, USB
• Alarm relay for connecting alarm transmitters

TESTO 622 - THERMOHYGROMETER AND BAROMETER

• Measures air temperature / pressure / RH
• Ideal for monitoring the air, especially in laboratories
• Alarm alerts when threshold is exceeded
• Table or wall mount