Measurement of surfaces, liquids and indoor air

A comprehensive selection of suitable Testo measuring instruments is available to you for the measurement of temperatures on surfaces, in liquids or in indoor air. Decide on either compact thermometers, clamp thermometers with smartphone operation, versatile multi-channel measuring instruments, robust penetration thermometers or especially precise temperature measuring instruments. This means you always have the right instrument to hand for the following applications on gas boilers, condensing boilers or heat pumps:

  • Measurement and adjustment of the flow and return temperature
  • Carrying out a hydraulic balancing
  • Testing underfloor heating systems and radiators
  • Monitoring indoor air temperature

11 Products or Recomendations for Measurement of surfaces
  • testo 925 - temperature measuring instrument

    Order-Nr. 0560 9250

    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

    € 88,00
    € 107,36 z DDV-om
  • testo 104 - Waterproof food thermometer

    Order-Nr. 0563 0104

    Waterproof folding thermometer - ideal for spot check measurements in the food sector.

    • Ideal for use with food: HACCP compliant, EN 13485 certified

    • Can be cleaned under running water – IP65 rated

    • Practical folding mechanism with rugged metal joint; easy and ready to use

    • Automatic final value recognition (auto-hold); min/max memory for all hold/auto-hold readings

    € 78,00
    € 95,16 z DDV-om
  • testo 110 - Temperature meter

    Order-Nr. 0560 1108

    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

    € 98,00
    € 119,56 z DDV-om
  • testo 905-T2 - Surface thermometer with large measuring range

    Order-Nr. 0560 9056

    The testo 905-T2 surface thermometer can measure the temperature reliably and impressively fast even on uneven surfaces. Its measuring head with sprung thermocouple strip is what makes this possible. This efficient temperature measuring instrument is therefore suitable for diverse applications in the heating, plumbing and refrigeration trade (e.g. measurements on pipes or valves).

    • Suitable for measurements on uneven surfaces

    • Large measuring range: Temperature measurements up to +500 °C possible for a short time

    • Convenient reading of measurement results on the swivel display

    • Extremely quick response time

    € 84,00
    € 102,48 z DDV-om
  • testo 922 - Digital temperature meter

    Order-Nr. 0560 9221

    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

    € 122,00
    € 148,84 z DDV-om
  • testo 115 i - clamp thermometer with smartphone operation

    Order-Nr. 0560 1115

    Combined with a smartphone or tablet, the testo 115i clamp thermometer is the ideal temperature measuring instrument for carrying out servicing and troubleshooting on air conditioning and refrigeration systems, as well as for installing them. It can also be used to measure flow and return temperatures.

    • Measurement of the flow and return temperature of heating systems

    • Measurement of temperatures in refrigeration systems in order to calculate superheating and subcooling

    • Easy to use at measuring points that are far apart

    • Rapid detection of temperature changes via graphical progress display

    € 50,00
    € 61,00 z DDV-om
  • testo 905-T1 - penetration thermometer (large measuring range)

    Order-Nr. 0560 9055

    The testo 905-T1 penetration thermometer enables reliable temperature measurements in liquids, soft or powdery substances and in the air. In doing so, it is the temperature measuring instrument's large measuring range and its short response time that make it stand out. Both advantages are due to the high-quality type K thermocouple probe.

    • Temperature measurements up to +500°C possible for a short time

    • Measuring values easy to read off thanks to a pivoting display

    • Quick response time

    • Long, pointed thermocouple probe: ideal for measurements in liquids, soft or powdery substances and in the air

    € 62,00
    € 75,64 z DDV-om
  • testo 905 i - thermometer with smartphone operation

    Order-Nr. 0560 1905

    Check ambient temperatures and temperatures in ducts and at air outlets quickly, easily and professionally: with the testo 905i thermometer, which is optimized for your smartphone, nothing could be simpler.

    • Rapid detection of temperature change via graphical progress display

    • Measuring range -50 to +150 °C

    • Measurement data analyzed and sent via testo Smart Probes App

    € 65,00
    € 79,30 z DDV-om
  • testo 925 set - Special offer: temperature meter

    Order-Nr. 0563 9250

    This special offer comprises a testo 925 digital temperature meter and a surface temperature sensor that can be used for both plane and uneven surfaces. Ideal for carrying out quick and easy temperature measurements on production and assembly lines.

    • Professional testo 925 temperature meter

    • Super-fast reaction time; surface temperature sensor with flexible thermocouple strip; also suitable for non-plane surfaces

    • All-in-one carrying case for meter and sensors

    • Ideal for use on production and assembly lines

    € 219,00
    € 267,18 z DDV-om
  • testo 922 Heating constructors' Promo set - Heating constructors' Promo set

    Order-Nr. 0563 9221

    Heating constructors' Promo set testo 922 incl. testo 922, 2 x pipe wrap probe and transport case

    • 2-channel measuring instrument with optional radio probe

    • Displays differential temperature

    • Continuous display of max/min values

    • TopSafe, indestructible case, protects from dirt and impact (option)

    € 348,00
    € 424,56 z DDV-om
  • testo 922 HVAC/R Set - temperature measuring instrument

    Order-Nr. 0563 9222

    The testo 922 temperature measuring instrument now comes in a HVAC/R Set set that includes two surface temperature probes and a handy bag – ideal for measuring differential temperature in heating engineering, in the sanitation sector and in refrigeration and air conditioning technology.

    • Temperature measurement and direct display of differential temperature 

    • Surface temperature probes with Velcro: enables easy attachment of the probe to pipes

    • The measuring instrument and the two surface temperature probes can be safely stored in the handy bag

    • This set is immediately ready for use for your temperature measurements in the sanitary and HVAC/R sector

    € 219,00
    € 267,18 z DDV-om
11 Products found