Secure Connection &ndash; Enables reliable linking between Pitot tubes and pressure probes.

Silicone-Free Material &ndash; Ideal for use in sensitive environments such as clean rooms, laboratories, and manufacturing processes requiring silicone-free equipment.

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The testo 340 flue gas analyser is a high-performance emissions monitoring tool designed for industrial applications. Equipped with an O₂ sensor, an integrated flow and pressure difference measurement feature, and a calibration protocol, it delivers precise and adaptable flue gas analysis. The ability to add up to four gas sensors makes it suitable for a variety of industrial environments, ensuring reliable performance in high gas concentration conditions.

The testo 350 Analysis Box is an MCERTS-certified, high-performance exhaust gas analyser designed for industrial emissions monitoring in demanding conditions. It supports up to six gas sensors, enabling precise measurements. The Analysis Box can be operated via the testo 350 Control Unit (sold separately), PC software, or remotely via Bluetooth or USB, making it ideal for complex industrial applications. (Able to be fitted with new O2 LongLife sensor).

Make sure you get the testo 420 volume flow hood for larger ceiling outlets and at the same time enjoy multiple maintenance benefits on HVAC systems. Because the flow hood with the removable measuring instrument is not only exceptionally light, it also guarantees accurate volume flow calculations at swirl outlets

Use the testo 420 differential pressure measuring instrument to carry out simple, efficient tests on filters. You can also use the measuring instrument in conjunction with a Pitot tube to measure flow velocity and volume flow really easily in ventilation ducts.

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Precise, reliable measurement of all air velocity and IAQ parameters with the testo 440 dP: the multifunction measuring instrument features an integrated differential pressure sensor and intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements &ndash; thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).

The testo 440 delta P Air Flow ComboKit 1 with Bluetooth&reg; provides a complete, wireless solution for measuring air velocity, differential pressure, humidity, and temperature in ventilation ducts and at air outlets. It includes the testo 440 IAQ measuring instrument, a 100 mm vane probe, a hot wire probe (&Oslash; 9 mm), and a differential pressure sensor, all stored in a convenient, rugged carrying case.

The testo 440 delta P Air Flow ComboKit 2 with Bluetooth&reg; is a versatile, all-in-one solution for measuring air velocity, differential pressure, humidity, and temperature in ventilation ducts, air outlets, and workrooms. The kit includes the testo 440 IAQ measuring instrument, two vane probe heads (&Oslash; 100 mm and &Oslash; 16 mm), a humidity/temperature probe head, and a differential pressure sensor. All components are stored in a durable carrying case for easy transport.

You can keep a close eye on indoor air quality with the testo 445 climate measuring instrument: the allrounder can measure up to 6 parameters (with the appropriate probe), which can help you make a professional assessment of indoor air quality. The climate measuring instrument therefore supports you in adjusting and checking ventilation and air conditioning systems.

The testo 510 is a precise and easy-to-use differential pressure meter, ideal for HVAC and heating system maintenance. It measures differential pressure from 0 to 100 mbar, making it perfect for checking filters in air conditioning systems or measuring gas flow and static pressure in heating systems.

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The testo 526-2 high-precision differential pressure measuring instrument is ideally suited for checking pressure in sensitive industrial processes, thanks to a measuring accuracy of &plusmn; 0.05% of final value. Two additional pressure and temperature probes can also be attached.

The testo 6351 pressure transmitter for differential pressure is suitable for industrial applications. It can record even the lowest pressures with a high level of accuracy. The pressure transmitter was specially designed for monitoring differential pressure in the 50 Pa to 2,000 hPa measuring range.

The testo 400 is the ultimate tool for professionals in indoor air quality (IAQ) measurement. It offers a wide range of features including intuitive measurement programs, high-precision sensors, and the ability to connect a variety of probes. It&rsquo;s the ideal instrument for measuring, analysing, and documenting all IAQ and comfort parameters, providing full compliance with standards.

Ideal kit for IAQ professionals, with a focus on indoor air quality and comfort level. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one CO₂ probe (with Bluetooth&reg; handle), one turbulence probe and one globe thermometer &Oslash; 150 mm (both with fixed cable). Use the measuring tripod to ensure standard-compliant positioning of the probes. In combination with the IAQ data logger, which is available to order separately, long-term measurements up to 2 weeks can be recorded, even without the IAQ measuring instrument.

Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one vane probe head (&Oslash; 16 mm), one vane probe head (&Oslash; 100 mm) and one high-precision humidity/temperature probe head &ndash; all three can be attached to the Bluetooth&reg; handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90&deg; angle.

Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one hot wire probe head (including temperature and humidity sensor), one vane probe head (&Oslash; 100 mm) and one high-precision humidity/temperature probe head &ndash; all three can be attached to the Bluetooth&reg; handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90&deg; angle.

The compact testo 512-1 differential pressure measuring instrument (0 to 200 hPa) offers a fast and precise solution for measuring gas flow and static pressure in heating systems, checking filters in air conditioning systems, and performing Pitot tube measurements in ventilation ducts. With seamless integration to the testo Smart App, users can configure the device, view real-time data (including as a second screen), and store or document measurements directly within the app. Its intuitive design and versatile functionality make the testo 512-1 an essential tool for HVAC professionals seeking accurate and efficient pressure measurements.

Robust stainless steel Pitot tube (500 mm length, 7 mm &Oslash;) for accurate flow velocity measurements in high-speed or contaminated air streams. Ideal for use with compatible Testo measuring instruments.

General technical data	Weight 126 g
	Measuring range +1 to +100 m/s
	Operating temperature 0 to +600 °C
	Product-/housing material Metal housing
	Product colour silver

Stainless steel Pitot tube, length 500 mm, Ø 7 mm - for measuring flow velocity

Stainless steel Pitot tube, length 500 mm, Ø 7 mm - for measuring flow velocity

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General technical data

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