Refrigeration systems, air conditioning systems and heat pumps

To ensure that refrigeration, air-conditioning and heat pump systems function smoothly, cost-effectively, and in an environmentally friendly manner, their functions must be checked regularly. The testo Smart Probes range of compact measuring instruments the make measuring temperature, pressure, humidity, and flow more straightforward and mobile than ever before. The practical Smart Probes are always at hand for immediate use.

Best seller: testo 605i

How testo Smart Probes offer support for refrigeration systems, air conditioning systems and heat pumps

Leak test

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  • Long-term measurement of system pressure with the testo 549i high-pressure measuring instrument
  • Check for compressor leaks with the testo 549i high pressure measuring instrument.

This is how the testo Smart App supports this job:

  • Recording and analysis of the pressure curve

Superheating and subcooling

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  • Simultaneous measurement of temperature and pressure on the high and low pressure side of the system with two testo 115i clamp thermometers and two testo 549i high-pressure probes
  • Straightforward measurement even at measuring points far away from each other (indoors and outdoors) thanks to a long range of up to 328 feet

This is how the testo Smart App supports this job:

  • All relevant refrigerants stored
  • Automatic updates of new refrigerants
  • Automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling

Target superheat

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  • Measurement of wet bulb temperature with the testo 605i thermohygrometer
  • Measurement of outside temperature with the testo 605i thermohygrometer
  • Simultaneous measurement of temperature and pressure on the high and low pressure side of the system with two testo 115i clamp thermometers and two testo 549i high-pressure probes

This is how the testo Smart App supports this job:

  • All relevant refrigerants stored
  • Automatic updates of new refrigerants
  • Automatic calculation of the target superheat

Measuring vacuum

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  • Flexible positioning of the wireless testo 552i Smart Probe for more accurate measuring results
  • Hose-free application prevents leaks and refrigerant loss

We recommend these products

testo 115i – Pipe-Clamp Thermometer Wireless Smart Probe

testo 549i – Refrigeration Pressure Wireless Smart Probe

testo 605i – Thermo-Hygrometer Wireless Smart Probe

testo 552i – vacuum gauge operated by smartphone

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For accurate hose-free vacuum measurement on refrigeration systems, air conditioning systems or heat pumps

We recommend these kits

testo Smart Probes AC & refrigeration test kit

testo Smart Probes AC & refrigeration test and load kit

testo Smart Probes HVAC/R Complete kit

Overview of all Smart Probes and Smart Probes kits