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The CEC compliant testo 420 air flow capture hood with Bluetooth is the accurate, lightweight, and convenient solution for measuring volume flows at supplies and returns. Handling this air flow capture hood with its flow straightener and tiltable display is especially easy, with its low weight of less than 6.4 lbs, 24&quot; x 24&quot; included hood dimensions, and ergonomic handles.<br />
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<strong>*First NIST Calibration FREE with purchase of testo 420 through the testo Web Shop!</strong>

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

The testo 510i Smart Probe is a wireless differential pressure probe used for accurate low-pressure measurements. &nbsp;The testo 510i is great for measuring pressure in manifolds, static pressure, and pressure drops in buildings or ventilation systems.&nbsp; Use it to measure the pressure drop across coils and filters, or in ducts and systems.

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The high precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for pressure drop on filters, for instance, for checking fans and extractors, or for pitot tube measurements.

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.

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Ideal for checking pressure in sensitive industrial processes, the testo 526-1 high precision differential pressure measuring instrument&nbsp;has a measuring accuracy of &plusmn;0.1% of the final value. It also has two probe inputs for additional pressure and temperature probes.

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 the final value. Two additional pressure and temperature probes can be attached.

<div>Complete kit for all-round engineers in the field of heating, air conditioning, refrigeration and ventilation: The kit contains all the testo&nbsp;Smart Probes and is ideal for carrying out functional checks or for plant maintenance, in conjunction with your smartphone/tablet. The testo&nbsp;Smart&nbsp;App enables you to work more easily and efficiently: Automatically calculate numerous parameters such as superheating/subcooling, target superheat, cooling/heating load, differential temperature or mold indication. Measurement data reports can be emailed directly as a PDF or Excel file.<br />
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<strong>**NOTE** The testo 115i, 549i, and 605i Smart Probes now have an extended Bluetooth range of up to 350 Feet!*</strong></div>


For heating engineers: Compact kit containing three measuring instruments for carrying out your most important measuring tasks involving heating systems. The testo&nbsp;Smart App enables you to work more easily and efficiently: Use the measurement menus for pressure drop test with alarm function or for non-contact IR temperature measurement with image documentation including measuring value and measurement spot marking. Measurement data reports can be emailed directly as a PDF or Excel file.

Match this pitot tube with a connection hose and pressure probe to allow for flow velocity measurement.

This 19.7&quot; stainless steel pitot tube can be used to measure flow velocity.

Weight	4.45 oz. / 126 g
Measuring range	+197 to +19685 fpm / +1 to +100 m/s
Operating temperature	32.0° to 1112.0 °F / 0 to +600 °C
Housing	Metal housing
Product colour	silver

Pitot tube, 19.7 in. - stainless steel

Pitot tube, 19.7 in. - stainless steel

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