For super-fast spot checks and reliable results. The testo 108 waterproof food thermometer for measuring temperatures during food production, processing and storage. For carrying out super fast and reliable temperature checks during food production, processing and storage.

The testo 175 T3 temperature logger with its two connections for external thermocouple probes is a good idea when you would like to record your temperatures at two locations in parallel: for example when measuring the flow and return temperature on radiators. The readings are securely saved in the temperature logger and are available for later measurement data analysis and documentation.

The testo 176 T3 temperature data logger is ideal for monitoring temperature values in production processes. Its robust metal housing makes it ideal for use in the industrial sector. With inputs for four thermocouple probes, it can measure at up to four points in parallel.

The testo 176 T4 data logger can measure the temperature at up to four different measurement sites simultaneously. It also has a super size memory for up to 2&#x202F;000&#x202F;000 readings, an exceptionally wide measurement range and is compatible with a number of different thermocouple elements making it ideal for professional use in a variety of different fields.

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features 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).

Kit for carrying out measurements at air outlets: the testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 100 mm) with Bluetooth&reg; including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!

Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 16 mm) are safely stowed away in the case. So you can get down to work straight away!

Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth&reg; including temperature sensor and the hot wire probe including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!

Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth&reg; including temperature sensor and the vane probe (Ø 16 mm) are all safely stowed away in the case. So you can get down to work straight away!

Kit for evaluating the indoor air quality. The testo 440 air velocity and IAQ measuring instrument and the CO2 probe with Bluetooth&reg; including temperature and humidity sensor are all safely stowed away in the case. So you can get down to work straight away!

Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the hot wire probe (Ø 9 mm) including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!

Kit for carrying out measurements in storage, refrigeration and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps. Keep the testo 440 air velocity and IAQ measuring instrument and the humidity/temperature probe with Bluetooth&reg; safely stowed away in the case. So you can get down to work straight away!

Use this practical Indoor Comfort ComboKit to handle all relevant measurements in order to evaluate the indoor air quality in indoor areas and to determine the draught risk and degree of turbulence in workplaces. The testo 440 air velocity and IAQ measuring instrument, the CO2 probe with Bluetooth&reg; including temperature and humidity sensor and the turbulence probe are all safely stowed away in the case. So you can get down to work straight away!

Kit for measuring the illuminance in workplaces, for example in offices or in production areas. Keep the testo 440 air velocity and IAQ measuring instrument and a lux probe safely stowed away in the case. So you can get down to work straight away!

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: 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).

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 (Ø 9 mm) for attachment to the universal Bluetooth&reg; handle supplied. 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.

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 (Ø 100 mm and Ø 16 mm) and a humidity/temperature probe head – all three can be attached to the universal Bluetooth&reg; 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.

Kit for carrying out measurements in laboratories: The testo 440 air velocity & IAQ measuring instrument and the glass-coated, digital laboratory probe (Ø 6 mm) with Pt100 temperature sensor are all safely stowed away in the case. So you can get down to work straight away!

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away with the testo 558s Heat Pump Kit. This all-in-one solution includes the testo 558s digital manifold, 2x testo 115i temperature clamps, testo 552i vacuum probe, testo 560i refrigerant scale with valve, and the testo 770-3 clamp meter, giving you the ideal tools for precise and efficient servicing and maintenance. 
The testo 558s features intuitive touchscreen operation, clear measurement graphs on a large color display, and key-based controls for easy use&mdash;even with gloves. Designed for maximum flexibility, it supports Bluetooth connectivity to wireless temperature and vacuum probes, enabling seamless data transfer and real-time monitoring. 
With A3 and A2L refrigerant compatibility, an IP54-rated rugged design, and a hybrid power system using both rechargeable and non-rechargeable batteries, the testo 558s Heat Pump Kit is built for every challenge.

The testo 635-1 is a professional temperature and humidity measuring instrument designed for precise climate monitoring in various environments. It supports multiple probe types, calculates dew point and absolute pressure, and features wireless measurement data transfer. With robust construction and an intuitive display, it&rsquo;s perfect for applications in production, storage, HVAC systems, and more.

The testo 635-2 is a high-performance thermohygrometer designed for precise climate monitoring across multiple applications. With support for temperature, humidity, material moisture, and pressure dew point measurements, it features expandable sensor connectivity and a large memory for 10,000 readings. The included USB interface and PC software allow seamless data logging and analysis, making it an essential tool for HVAC professionals, facility managers, and quality control experts.

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 equipment for you. The wide selection of optional probes enables flexible use of the temperature measuring instrument, for example to calibrate stationary temperature probes, in the electronics and food industries or in laboratories.

Calibration of static temperature sensors, temperature measurements in the cosmetics industry, chemical laboratories, the field of cooling and refrigeration technology, the food industry: the testo 735-2 multichannel thermometer can master virtually any application thanks to a wide range of optionally available sensors, a super-size memory and wireless data transfer.

The testo 760-2 digital multimeter is the allrounder for all important electrical measuring tasks. Thanks to the automatic detection of measurement parameters, it offers the greatest possible reliability for every application. You can also measure current in the &micro;A range and determine the true root mean square using this digital multimeter.

The testo&nbsp;760-3 is the most high-performance model in Testo&#39;s digital multimeter family. In addition to automatic detection of measurement parameters, it is characterized by a voltage measuring range of up to 1,000&nbsp;V along with large measuring ranges for frequency and capacitance. The digital multimeter is therefore also suitable for industrial applications.

The innovative grab mechanism makes the testo 770-2 the perfect clamp meter for non-contact measurements on tightly packed cables with a small diameter. In addition to the standard functions of the testo 770-1 clamp meter, it also offers a temperature adapter and measures current in the &micro;A range.

Non-contact measurement on tightly packed cables is really easy and reliable with the testo 770-3 clamp meter. Its innovative grab mechanism will make your work easy. The most powerful model in the clamp meter series, it offers lots of additional functions for those challenging tasks that you are faced with on a daily basis, e.g. connection to the testo Smart App and other Testo measuring instruments. Thanks to its increased resolution, the clamp meter delivers highly precise results even in the lower current range.

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

The testo 860i Electrical Kit combines the high-resolution testo 860i Wireless Thermal Imaging Camera with the advanced testo 770-3 Clamp Meter, offering an all-in-one solution for electrical and HVAC professionals for a comprehensive system evaluation. This enables professionals to capture precise thermal images and perform accurate electrical measurements simultaneously, streamlining workflow and improving troubleshooting efficiency&mdash;all seamlessly managed via the testo Smart App.

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 &ndash; 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>The testo Monobloc Heat Pump Testing Kit equips engineers with the essential tools for installing, servicing, and maintaining monobloc heat pumps. The kit includes the testo 770-3 clamp meter, designed for accurate electrical measurements, along with 2x testo 115i temperature clamp probes, ideal for use measuring flow and return temperatures. All instruments connect via Bluetooth to the testo Smart App, enabling real-time data monitoring and instant report generation. Housed in a rugged transport case, this kit ensures precision, efficiency, and portability for heat pump professionals.</div>

This component is part of the environmental monitoring system testo Saveris 1. The modular system records and analyzes your critical environmental data, alerts you immediately if limit values are violated and can help you optimize your processes.

The testo 400 is the universal measuring instrument for all IAQ professionals. Measure, analyze and document all 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 IAQ probes make the testo 400 the perfect partner for your day-to-day work.

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 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.

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 (Ø 16 mm), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – 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° 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 (Ø 100 mm) and one high-precision humidity/temperature probe head – 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° angle.

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 &ndash; 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 &ndash; making it versatile.

The wireless thermometer testo 915i 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 &ndash; making it versatile.

With the compact 2-channel temperature measuring instrument testo 922 (dual TC Type K, 2 probes,&nbsp;Class 1 included) you have the versatile solution for simple, fast and precise measurement of the differential temperature, e.g. when checking the supply/return temperature on heating circuit manifolds. The testo Smart App supports you with useful functions suchz as configuration, display (also as second screen) and storage as well as documentation of the measured values directly in the App.

With the compact temperature measuring instrument testo 925 (1 TC Type K probe, Class 1 included), you have the versatile solution for simple, fast and precise temperature measurements in industry and trade. The testo Smart App supports you with useful functions suchz as configuration, display (also as second screen) and storage as well as documentation of the measured values directly in the App.

Ultimate kit for all-round engineers in the field of heating, air conditioning, refrigeration and ventilation: The kit contains all the testo Smart Probes and is ideal for carrying out functional checks or for plant maintenance, in conjunction with your smartphone/tablet. The testo Smart App enables you to work more easily and efficiently: Automatically calculate numerous parameters such as superheating/subcooling, target superheat, cooling/heating power or differential temperature. Measurement data reports can be emailed directly as a PDF or Excel file.

Flexible thermoelectric couple with TC plug and glass fibre insulation for fast and easy temperature measurement (with the appropriate measuring instrument).

Measuring range	-50 to +400 °C
Accuracy	Class 2 ¹⁾
Reaction time	5 s
1) According to standard EN 60584-1, the accuracy of Class 2 refers to -40 to +1200 °C.

Weight	10 g
Diameter probe shaft	1.5 mm
Length probe shaft	800 mm
Product colour	silver
Interface	plug thermocouple

Flexible thermoelectric couple - with TC type K temperature sensor (glass fibre)

Flexible thermoelectric couple - with TC type K temperature sensor (glass fibre)

Temperature - TC Type K (NiCr-Ni)

General technical data