Vacuum meter testo 552

testo 552 – digital vacuum meter

Digital pressure gauge for vacuuming heat pumps and cooling systems

  • Highly accurate and reliable measurement results
  • Monitor and send measurement data via the testo SmartProbes app
  • Large illuminated display

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Finns i lager

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testo 552 – digital vacuum meter

testo 552 is a digital pressure gauge for vacuum suction of heat pumps and cooling systems. Its robust construction makes it ideal for daily use, protected against dirt and water. The instrument provides very precise information on the degree of dehumidification and removal of foreign substances (oils, foreign gases, etc.) of a system. Since the testo 552 uses an absolute pressure sensor, it is also practically maintenance-free, unlike vacuum meters with other sensor technology.

Via a Bluetooth interface, the testo 552 can connect to the testo Smart app on your smartphone or tablet. It makes it possible to monitor the absolute pressure value obtained during vacuum suction – conveniently and wirelessly. In addition, measurement results can be quickly documented in the app and sent by email.

The testo Smart app requires at least iOS 8.3/Android 4.3.

testo 552 digital vacuum meter – areas of use

Vacuum extraction is one of the most important steps in the installation or restart of cooling and heat pump systems: foreign gases, moisture and oils must be eliminated.

This is exactly what the testo 552 digital vacuum meter is designed to do: the meter gives you very precise information about the dehumidification status of the system and can measure very low absolute pressures reliably. This means you can always follow the manufacturer’s specifications. A visual alarm immediately warns when a limit value has been exceeded.

Since the digital vacuum gauge is IP42 rated (waterproof and dirt-resistant), it is virtually impervious to moisture and dirt.

The testo Smart app requires at least iOS 8.3/Android 4.3.

Included in delivery

testo 552 digital vacuum meter with Bluetooth and two AA batteries

Measurement range0 ... +26.66 mbar / 0 ... 20,000 microns
Accuracy – vacuum ± 1 digit (at 22 °C)± 10 microns + 10% of mv
(100 ... 1000 microns)
Resolution1 micron (0 ... 1000 micron)
10 microns (1,000 ... 2,000 microns)
100 microns (2,000 ... 5,000 microns)
500 microns (5,000 ... 10,000 microns)
5,000 microns (10,000 ... 20,000 microns)
Overbelly. vacuumabsolute: 6 bar / 87 psi
relative: 5 bar / 72 psi
Storage temperature-20 ... +50 °C
Operating temperature-10 ... +50 °C
ParametersmmHg, Dry, mbar, hPa, micron, inH20, inHg, Pa
Measurement interval0.5 sec
SensorPirani sensor
Connection2 x 1/4" SAE (7/16" UNF)
1 pc. mini-DIN (connection to testo 570)
Size250 x 165 x 55 mm
WeightAbout 500 g
Battery life50 hours
(without Bluetooth / backlight)
Guarantee2 years
Compatibility for
SmartProbes app		Requires iOS 8.3 or later /
Android 4.3 or later
and smartphone with
Bluetooth 4.0
There are no probes for this item.
There are no accessories for this item.
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Datablad testo 552
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