To improve heat transfer in surface probes

The testo 108 waterproof food thermometer is a reliable and rugged solution&nbsp;for food meaurement needs. With a sleek, compact, waterproof housing and interchangeable Type T and Type K probes, the testo 108 offers a wide variety of measurement options for most food applications.

The testo 175T3 temperature data logger features a large display and alarm indication that makes it ideal for continuous monitoring of temperatures. The 175T3 temperature measurement logger has dual external thermocouple connections, 1 Type K and 1 Type T, which allows for simultaneous measurements using a wide variety of probes. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.

The testo 176T3 temperature data logger with rugged metal housing makes it ideal for monitoring temperatures. The 176T3 temperature measurement logger features external thermocouple parallel connections, which allow for simultaneous measurements using a wide variety of probes. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.

The testo 176T4 temperature measuremt logger, with its&nbsp;bright, backlit display,&nbsp;is ideal for the monitoring of multiple temperatures. The 176T4 temperature data logger has external thermocouple parallel connections, which allows for simultaneous temperature measurements at four sites using a wide variety of probes. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>Ideal for Testing, Adjusting and Balancing (TAB) / (Retro)-Commissioning &ndash; Professionals (BSC / RCx) or Cleanroom Performance Tester (CPT) the testo 400 Air Flow kit meets highest standards when it comes down to accuracy and durability for air velocity measurements on HVAC systems.
<h3>&nbsp;</h3>

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>Ideal for Commissioning and IAQ investigation professionals

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>The testo 400 IAQ Kit is ideal for Commissioning and IAQ investigation professionals verifying building HVAC system performance parameters.

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument&nbsp;&ndash; the testo 440. This multifunction measuring instrument is intuitive and easy to use, thanks to its clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality, and carrying out comfort level measurements are all possible without the hassle of juggling different devices and tools. Enjoy the versatility of using your choice of high quality digital probes with just one measuring instrument.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for carrying out indoor air quality measurements. The testo&nbsp;440 air velocity and IAQ measuring instrument and its CO<sub>2</sub> probe with humidity/temperature sensor can all be safely stored in the included case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for carrying out measurements at air outlets. The testo&nbsp;440 air velocity and IAQ measuring instrument and its vane probe (&Oslash; 3.9&quot;) with temperature sensor can all be safely stored in the included case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for carrying out measurements in ventilation ducts and at air outlets. The testo&nbsp;440 air velocity and IAQ measuring instrument, its vane probe (&Oslash;&nbsp;3.9&quot;) with Bluetooth and temperature sensor, and hot wire probe including temperature sensor&nbsp;can all be safely stored in the included case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for carrying out measurements in ventilation ducts. The testo&nbsp;440 air velocity and IAQ measuring instrument and its vane probe (&Oslash; 0.63&quot;) can all be safely stored in the included case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for carrying out measurements in storage, refrigeration, and work rooms, in ventilation ducts, and also on refrigeration systems and heat pumps. The testo&nbsp;440 air velocity and IAQ measuring instrument and its humidity/temperature probe (&Oslash; 0.47&quot;) with temperature sensor can all be safely stored in the included case.

<div style="margin-left:-1rem; margin-right:-1rem"><strong>When you register your product, we will extend the regular manufacturer&#39;s warranty by one year. &gt;&gt; Register now and get a warranty extension.</strong></div>
This testo 440 kit is great for carrying out measurements in ventilation ducts. The testo&nbsp;440 air velocity and IAQ measuring instrument and its hot wire probe (&Oslash; 0.35&quot;) with temperature sensor can all be safely stored in the included case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for evaluating indoor air quality and determining draft risk and degree of turbulence in workplaces. The testo&nbsp;440 air velocity and IAQ measuring instrument&nbsp;and its CO<sub>2</sub>&nbsp;probe with humidity/temperature sensor and turbulence probe can all be safely stored in the included case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>This testo 440 kit is great for carrying out measurements in ventilation ducts and at air outlets. The testo&nbsp;440 air velocity and IAQ measuring instrument and its vane probes can all be safely stored in the included case.

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument &ndash; the testo 440 dP.&nbsp;This multifunction measuring instrument is intuitive and easy to use, thanks to its integrated differential pressure sensor and clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality, and carrying out comfort level measurements are all possible without the hassle of juggling different devices and tools. Enjoy the versatility of using your choice of high quality digital probes with just one measuring instrument.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor and the 100 mm vane probe head and hot wire probe head (&Oslash; 9 mm) for attachment to the universal Bluetooth handle supplied.&nbsp; To make measurements more convenient, both probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor, two vane probe heads (&Oslash; 100 mm and &Oslash; 16 mm) and a humidity/temperature probe head &ndash; all three can be attached to the universal Bluetooth&lt;sup&gt;&amp;reg;&lt;/sup&gt; handle supplied. To make measurements more convenient, both vane probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.

The testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity, and dew point &ndash; in compressed air as well. State of the art technology and a large selection of probes, which are available optionally, allow for a wide variety of measuring possibilities.

The testo 635-2 temperature and moisture meter measures the temperature and moisture of different types of materials, surfaces, and environments, with a wide range of optional sensors.

If you need a measuring instrument for accurate temperature measurement, or you would like to measure the temperature in several locations simultaneously, the testo 735-1 is the ideal&nbsp;tool for you. The wide selection of optional probes enables flexible use of this temperature measuring instrument, for example, to calibrate stationary temperature probes, in the electronics and food industries, or in laboratories.

Calibrating static temperature sensors, temperature measurements in the cosmetics and food industries, laboratories, the cooling and refrigeration sector: the testo 735-2 multichannel thermometer can master virtually any application, thanks to wireless data transfer, a super-size memory, and a wide range of optional sensors.

The testo 830-T2 infrared thermometer enables you to carry out efficient, non-contact surface temperature measurements. This IR thermometer will ensure that you are well equipped, especially for undertaking control measurements in trade and industry. The gun style design is easy to handle, and the integrated processor provides accurate measurement results.

The testo 830-T4 infrared thermometer achieves accurate results at greater distances during non-contact surface temperature measurement. This is provided by its 30:1 optics and powerful processor. This infrared temperature measuring instrument carries out measuring tasks in trade and industry quickly and efficiently.

Non-contact temperature and moisture measurements using only one device. The testo 835-H1 infrared thermometer measures the air temperature, and also has an intergrated moisture sensor for measuring moisture.<br /><br /><strong>For high temperature applications, see the testo 835-T2 (0560-8352)</strong>

The practical testo 835-T1 &nbsp;infrared thermometer offers maximum safety and precision when measuring the temperature of smaller objects from a medium distance.

The testo 835-T2 infrared thermometer reveals just what it&rsquo;s made of, long after other infrared thermometers have given up. The testo 835-T2 allows you to measure temperatures up to&nbsp;2,732 &deg;F, and moving objects, safely and reliably.

The testo 915i temperature kit with temperature probes will enable you to tackle your temperature measurements with greater speed, flexibility and ease: Included is a wireless thermometer testo 915i, an air probe, an immersion/penetration probe and a surface probe (all TC type K, class 1). The handle is compatible with all standard type K thermocouple probes – making it versatile. Thanks to Bluetooth and the testo Smart App, operation, evaluation and documentation can be carried out with exceptional ease and flexibility.

<div style="background-color:#dae4ea; border: 1px solid #648798; padding: 10px;"><b>Product no longer available. Have you checked out its successor?<br/>Why not enjoy the benefits that it has to offer: <a href="…/p/0563-0922">>> To the product</a></b></div>

<div style="background-color:#dae4ea; border: 1px solid #648798; padding: 10px;"><b>Product no longer available. Have you checked out its successor?<br/>Why not enjoy the benefits that it has to offer: <a href="…/p/0563-0925">>> To the product</a></b></div>

The testo 400 is the universal measuring instrument for all TAB / Commissioning and IAQ professionals. Measure, analyze and document Air flow, air pressure,&nbsp; IAQ and comfort level parameters using just one instrument &ndash; simply, conveniently and in compliance with the standards. High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of air flow, comfort and IAQ probes make the testo 400 the perfect partner for your day-to-day work.

<div style="background-color: #f4f3f1;border: 1px solid #e8e6e3;border-top-left-radius: 16px;border-top-right-radius: 16px;padding: 1rem;margin: 0 -1rem 1.5rem;"><b>When you register your product, we will extend the regular manufacturer's warranty by one year. <a href="https://www.testo.com/en-US/services/product-registration-climate">&gt;&gt; Register now and get a warranty extension.</a></b></div>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<sup>&reg;</sup> handle), one turbulence probe and one globe thermometer Ø 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.

Measure temperatures in liquids, semi-solid media and pastes: The wireless thermometer testo 915i with robust, fast-response immersion/penetration probe will enable you to tackle your temperature measurements with greater speed, flexibility and ease. The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth. The testo Smart App facilitates intuitive operation, clear display of measurement data as well as documentation and sending of reports on site. The handle is compatible with all standard type K thermocouple probes – making it versatile.

Ideal for measuring ambient temperature and temperatures in ducts or at air outlets: The wireless thermometer testo 915i with robust, fast-response air probe will enable you to tackle your temperature measurements with greater speed, flexibility and ease. The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth. The testo Smart App facilitates intuitive operation, clear display of measurement data as well as documentation and sending of reports on site. The handle is compatible with all standard type K thermocouple probes – making it versatile.

The testo 915i wireless thermometer with flexible probe will enable you to tackle your temperature measurements with greater speed, flexibility and ease. For instance, the flexible thermocouple wire can be laid through drill holes, gaps or door seals to measure the air temperature. The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth. The testo Smart App facilitates intuitive operation, clear display of measurement data as well as documentation and sending of reports on site. The handle is compatible with all standard type K thermocouple probes &ndash; making it versatile.

The testo 915i wireless thermometer with fast-response air probe and sprung thermocouple strip will enable you to tackle your temperature measurements with greater speed, flexibility and ease, even when dealing with uneven surfaces. The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth. The testo Smart App facilitates intuitive operation, clear display of measurement data as well as documentation and sending of reports on site. The handle is compatible with all standard type K thermocouple probes – making it versatile.

The surface temperature probe (thermocouple type K) can be used in a variety of applications in trade and industry. It can be connected to many different measuring instruments. It is also waterproof. This low-mass temperature probe is impressive thanks to its short response time.

Efficient, waterproof surface probe with small measurement head for flat surfaces, T/C Type K

Temperature - Type K TC	Measuring range -76.0° to 1832.0 °F / -60 to +1000 °C
	Accuracy Class 1 ¹⁾
	Reaction time 20 sec
1) According to standard EN 60584-1, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

General technical data	Weight 4 oz. / 116 g
	Dimensions length: 12 in. / length: 300 mm
	Length probe shaft tip 0.394 in. / 10 mm
	Diameter probe shaft 0.098 in. / 2.5 mm
	Diameter probe shaft tip 0.157 in. / 4 mm
	Cable length 4.265 ft. / 1.3 m
	Length probe shaft 5.906 in. / 150 mm
	Product colour Black
	Interface plug thermocouple

Surface probe with a small measuring head (TC type K)

Surface probe with a small measuring head (TC type K)

Temperature - Type K TC

Temperature - Type K TC

General technical data

General technical data

Accessories