Portable devices - with connectable probes

The testo 549 digital manifold offers many advantages in comparison with analog manifolds: the instrument will make it easier for you to work on refrigeration systems and heat pumps. With its integrated temperature measurement and automatic calculation of superheating/subcooling, you can now do away with additional measurements and manual comparisons (when using an optional clamp probe). You can also use the manifold for 60 current refrigerants.

• 60 current refrigerants stored in the instrument

• Calculation of superheating and subcooling in real time (with optional clamp probe): saves you from having to carry

• Temperature-compensated leakage test

• Two temperature-compensated pressure sensors

Our testo 112 calibratable temperature measuring instrument with PTB type approval is approved for official control measurements carried out by food inspectors, assessors and authorities. Thanks to NTC and Pt100 technology, this 1-channel temperature measuring instrument is exceptionally accurate.

• High-precision, calibratable temperature measuring instrument with PTB type approval – approved for official measurements

• An attachable temperature probe can be connected – NTC and Pt100 probes optionally available to meet numerous practical requirements

• Thanks to the water and dirt-repellent protective case TopSafe (optional), it is ideal for use in the food sector

• Useful functions: minimum/maximum value memory and acoustic alarm

testo 435 is a series of multi-function climate measuring instruments made by Testo. The testo 435-1 version is the entry-level measuring instrument in this series. You can use this to carry out measurements which you need to adjust ventilation and air conditioning systems and assess air quality. For this we offer you a comprehensive range of optional probes and sensors to choose from.

• You have the option of connecting thermal anemometers and vane anemometers for measuring air velocity and volumetric flow in ventilation ducts

• Air quality: measurement of CO₂, air humidity, air temperature and absolute pressure with the optional IAQ probe

• Display of dew point distance, min., max. and mean values

• Illuminated display

Cold storage rooms, cold storage warehouses, outdoors: the testo 110 digital temperature meter shows what it’s really made of when temperatures start to drop. Thanks to the NTC technology tucked away inside, it can measure temperatures in very low temperature environments.

• Extremely accurate, also in very low temperature ranges, i.e. cold storage rooms

• Optional connectable temperature sensor and wireless sensor for different applications in the field

• Audible alarm, user-defined thresholds

• HACCP compliant, certified according to EN 13485 for use in the food sector

The testo 645 humidity/temperature measuring instrument automatically indicates the measurement parameters of relative humidity, absolute humidity, dew point, degree of humidity, enthalpy and temperature at the touch of a button.

• High-precision humidity measurement up to ± 1% RH

• Internal reading memory (3,000 readings)

• Convenient data evaluation via optional PC software

• Possibility of attaching a really wide range of optional probes thanks to a large accessory portfolio

testo 435-3 – multi-function climate measuring instrument with integrated differential pressure measurement. You can use this to carry out measurements which you need to adjust ventilation and air conditioning systems and assess room air quality. For this we offer a comprehensive range of optional probes and sensors to choose from.

• Includes differential pressure measurement for filter monitoring or for measurement with a Pitot tube

• Further optional probes can be attached: thermal and vane anemometers, along with probes for air humidity, CO₂, absolute pressure and temperature

• Display of dew point distance, min., max. and mean values

• Illuminated display

The testo 830-T2 infrared thermometer enables you to carry out efficient, non-contact surface temperature measurements. The 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.

• Infrared thermometer for non-contact surface temperature measurements

• 12:1 optics and high resolution processor for accurate measurement results

• Contact measurement possible with connectable temperature probe (TC type K)

• Adjustable emission level

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

• Infrared thermometer for non-contact measurement of surface temperatures

• Accurate results thanks to its 30:1 optics and high resolution processor

• One-handed operation is easy thanks to the gun-style design

• One temperature probe can be connected for additional contact measurement (optional)

The testo 720 digital temperature meter is designed specifically for the special needs of laboratories and the industry and comes with a wide range of optional connectable sensors for surface temperature, air temperature and immersion measurements.

• Port for one RTD or NTC sensor

• Wide range of optional sensors for individual requirements

• User-defined thresholds, audible alarm when thresholds are exceeded

• Optional accessories for individual adaptation, i.e. protection against aggressive media for use in laboratories

Temperature measurements; measurements with up to three temperature sensors; direct display of temperature differences: the testo 922 digital temperature meter is ideal for professional use in the fields of heating, plumbing and air conditioning.

• Temperature measurements and temperature difference display

• Wide measuring range from -50 °C to 1 000 °C

• Connecting points for two type K temperature sensors; wireless connectivity for a third temperature sensor

• Wide range of optional sensors

This temperature measuring instrument is particularly practical because it enables virtually any kind of temperature measurement. Whether for surface, air or immersion/penetration measurement: with the testo 925 you can rely on our all-rounder in heating engineering, the sanitation sector and refrigeration and air conditioning technology.

• An attachable temperature probe and a radio temperature probe can be connected

• Large range of fast temperature probes on offer for surface, air or immersion/penetration measurement (optional)

• Continuous display of min./max. values

• Acoustic alarm sounds when limit values are exceeded

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

• Reliable IR measurement up to 600 °C 

• IR measurements from a safe distance

• Memory for up to 200 readings; easy analysis with free-to-download software

• 4-point-laser and 50:1 optics for precise measurements over greater distances 

The testo 835 T2 infrared thermometer reveals just what it’s made of long after other infrared thermometers have given up. The testo 835 T2 allows you to measure temperatures up to 1 500 °C and moving objects safely and reliably.

• Extended temperature range for reliable measurements up to 1 500 °C

• IR measurements from a safe distance; precise measuring of moving objects

• Memory for up to 200 readings; easy analysis with free-to-download software

• 4-point-laser and 50:1 optics for precise measurements over greater distances

Non-contact temperature and moisture measurements – with only one device. The testo 835-H1 infrared thermometer not only measures the temperature but has an intergrated moisture sensor that allows you to measure moisture too.

• Measure temperature, moisture and dew point with only one device

• Calculate the surface moisture content

• Easy and comfortable to use: easy-to-follow menu guide, can save up to 200 readings, data analysis with free-to-download software

• Four-Point-Laser and 50:1 Optics for precise measurements even over long distances

The testo 926 TE type T digital temperature meter provides you with a quick, reliable and discreet means of checking the core temperature of food in commercial kitchens, catering and other commercial and industrial environments.

• Connectivity for an attachable and a wireless sensor

• Wide range of optional sensors to suit your individual needs

• User-defined thresholds – audible alarm alerts when threshold exceeded

• Certified according to HACCP and EN 13485 – ideal for use with food

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.

• With optional probes that measure core temperature, surface temperature and air temperature

• Up to three probes can be attached and three additional temperature probes can also be connected to the temperature measuring instrument by radio

• Accurate measurement up to 0.05 °C with Pt100 temperature probe (optional)

• Display of min., max. and mean values and calculation of the differential temperature (delta T)

The testo 550 digital manifold can now make working on refrigeration systems and heat pumps even easier: the instrument can be used for 60 refrigerants, calculates superheating/subcooling automatically and can now also be connected to a practical smartphone/tablet app. The app makes the operation and the documentation of measurement results significantly more convenient.

• Automatic superheating/subcooling calculation: no more need for manual calculations, which are prone to error

• With a practical app: (remote) display, graphical progress display, documentation of readings

• Temperature-compensated leakage test

• 60 current refrigerants are included in the manifold (update possible via app)

The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.

• Calculation of superheating and subcooling in real time: no manual calculation, which is prone to error

• Connect to smartphone/tablet app: remote monitoring and smart measurement documentation

• Precise external Pirani gauge for vacuum measurement, temperature-compensated leakage test, automatic ambient pressure measurement

• The 60 most common refrigerants are stored in the instrument, subsequent updates possible (via app)

The testo 108-2 temperature measuring instrument can be used for quick spot temperature measurement in the food sector. Compared with the testo 108, the advantage of the testo 108-2 is that the probe can be locked on the temperature measuring instrument, ensuring a secure hold.

• Easy to operate and use: lockable probe for a secure hold

• Temperature measuring instrument with connected probe is waterproof (IP 67)

• Includes softcase and probe type T

• HACCP-compliant and certified to EN 13485

Being a systems mechanic you know only too well how tough things can get when you’re working out in the field. That’s why your measuring tools need to be rugged and reliable. Like the testo 310 flue gas analyzer. Designed especially for use in the field.

• Direct O₂, CO, flue gas and ambient temperature measurements

• Integrated measurement menu for flue gas, draft, CO ambient air and pressure

• Quick sensor zero in only 30 seconds

• Large, backlit digital display, rechargeable lithium battery with up to 10 hours life