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testo 552 – Digital vacuum gauge

testo 552 – Digital vacuum gauge

830.68SR Ex. VAT

SKU: T0560-5522
  • Measurement data monitoring via testo Smart App
  • Measurement data dispatch via testo Smart App
  • Extremely precise, extremely rugged, extremely practical – with visual alarm and backlit display
  • Measures pressure and calculates the evaporation temperature of H2O automatically

Extremely precise, rugged and practical: the testo 552 digital vacuum gauge. Ideal for evacuating refrigerant systems or heat pumps.

Available in-store. 1 week via Aramex Delivery


Product Description

The testo 552 is a high-precision digital vacuum gauge designed to provide you with absolutely reliable readings. It has all the measuring functions you need for evacuating refrigerant systems and heat pumps and is built to last and tough enough to take the odd knock.Via a Bluetooth interface, the testo 552 connects with the testo Smart App on your smartphone or tablet. This allows you to monitor the absolute pressure reached during the evacuation conveniently and wirelessly. In addition to this, the measurement results can be quickly documented in the App and sent by e-mail.

The testo 552 digital vacuum gauge – areas of application

Evacuating is one of the most important steps when it comes to installing or restarting refrigerant or air conditioning systems: foreign gases, moisture and oils have to be removed properly. That’s when the absolute pressure of a system needs to be measured.

And that’s exactly what the testo 552 digital vacuum gauge is designed to do: the meter provides you with highly accurate information regarding the dehumidification status of the system and is able to measure even the smallest of absolute pressures absolutely reliably. This means that you are always able to observe manufacturer specifications. A visual alarm warns immediately when a threshold has been exceeded.

And because the digital vacuum gauge is IP42 rated (water resistant and dirt proof), it is virtually impervious to moisture and dirt.

Delivery Scope

testo 552 digital vacuum gauge with Bluetooth®, two AA batteries.

Technical Data

Absolute Pressure
Measuring range0 to 26.66 mbar /

0 to 20000 micron

Accuracy±(10 micron + 10 % of mv) (100 to 1000 micron)
Resolution1 micron (0 to 1000 micron) /

10 micron (1000 to 2000 micron) /

100 micron (2000 to 5000 micron) /

Overloadabsolute: 6.0 bar / 87 psi

(relative: 5.0 bar / 72 psi)

General technical data
Weight500 g
Dimensions160 x 110 x 50 mm
Operating temperature-10 to +50 °C
Protection classIP42
System requirementsrequires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
Product colourblack/orange
Battery type2 AA
Battery life50 hrs (without Bluetooth/backlighting)
Connection2 x 7/16“ UNF
InterfaceBluetooth® 4.0 wireless technology
Parametermbar; micron; mmHg; Torr; inHg; inH20; hPa; Pa
Measuring rate0.5 s
Storage temperature-20 to +50 °C


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