The easy-to-use HVACR measuring instruments range
Sauermann’s new range of measuring instruments offers its 45 years of metrological expertise to distributors in the HVACR sector.
Sauermann offers 8 reliable and precise instruments designed to quickly check the functionality of HVACR systems.
Full spectrum HVAC-R management
Air parameters measurement
Instrument | ![]() |
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New ![]() Hotwire thermo-anemometer |
Air-conditioning circuit | ||||
- Measure air flow in ducts | |||||
Tip: Input the duct cross-section in the app to calculate average air flow rate in addition to air velocity. Use Hotwire instead of a vane for low speed air flows, or laminar air flows. |
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![]() Manifold |
Heat pumps | Air-conditioning units | Refrigerators, freezers | ||
- Measure superheat and sub-cooling of the refrigerant gas circuit - Measure high side and low side pressure - Calculate condensation and evaporation temperatures for 126 different gases |
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Tip: Essential when repairing a refrigerant gas leak (checking for draining and clogging, and re-commissioning). | |||||
![]() Digital differential pressure manometer |
Gas-fired boilers | Ventilation circuit | |||
- Measure pressure at the gas inlet valve - Measure pressure drop (draft) at the flue |
- Check filter clogging - Measure extractor fan pressure and air flow rate |
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Tip: Use the smartphone app to automatically calculate air flow and air velocity in a duct. Connect the manometer at the pressure element and enter the coefficient. You can also connect a Pitot tube and enter the coefficient and duct dimensions. | |||||
![]() Dual input thermocouple thermometer |
Water heaters | Multifunction | Refrigerators, freezers | ||
- Compare the water temperature in the boiler outlet and return pipes. |
- Ambient air temperature - Air temperature in the ducts - Temperature in domestic hot water systems |
- Measure superheat and sub-cooling of the refrigerant gas circuit. | |||
Tip: The smartphone app records the temperatures, and delta temperatures, over time to see that installation is working correctly. Can be viewed as a table or a graph. | |||||
![]() Infrared thermometer |
Radiators | ||||
- Measure radiator hot and cold spots to determine if venting is required. | |||||
Tip: Vastly improves speed and convenience (measurements delivered remotely in real time). Can measure ambient temperature (via app). Quickly see if you have overheating sources, for example on an electric installation. Affix a black strip on non-black surfaces. Adjust the emissivity of the surface (as per the manual) from 0.10 to 1.00 for accurate measurement. |
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![]() Thermo-hygrometer |
Ventilation | ||||
- Measure ambient air temperature and relative humidity. | |||||
Tip: Extreme relative humidity values (too high or too low) can pose hazards (allergies, germs, dust, mould, etc.). The app shows psychrometric parameters, such as dew point and wet temperature. | |||||
![]() Vane thermo-anemometer |
Air-conditioning circuit | ||||
Measure air flow through system inlet and outlet air vents. | |||||
Tip: Input the duct cross-section in the app to calculate average air flow rate in addition to air velocity. |

Backlit LCD screen

Long-battery life

Magnetic backing for easy fixing

Carrying bag

Calculated values on mobile App

Reports creation on mobile App
Mobile App
The Sauermann Si-HVACR Measurement MobileApp allows to view and record measurements in real-time.
- Easily view different parameters
- Browse saved measurements history and data graphs (average, min & max values, etc.)
- Create reports (PDF, CSV or XML format) and add up to four (4) photos

Leak detection
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![]() Gas leak detector |
Gas-fired boilers | |||
Detects leaks of combustible gases upstream of the boiler, at the inlet and inside the unit. | ||||
Tip: A flexible probe keeps the device’s sensor in contact with gas pipes in even the hardest-to-reach places. Pay special attention to joints in the circuit. Follow the manufacturer’s recommendations for replacing the sensor. |
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![]() Refrigerant leak detector |
Heat pumps | Air-conditioning units | Refrigerators, freezers | |
Detects refrigerant leaks in every part of the cooling circuit. | ||||
Tip: A flexible probe keeps the device’s sensor in contact with gas pipes in even the hardest-to-reach places. Pay special attention to joints in the circuit. |

Adjustable audio and visual alarm

30 cm flexible probe

Very high sensitivity