testo 552i, App-controlled vacuum smart probe

Including batteries and a factory calibration protocol

Fast and simple vacuum detection using graphs in the App or on the display of a digital manifold

Automatic Bluetooth connection to the testo Smart App and digital manifolds

Exceptionally compact and reliable thanks to a convenient and robust casing with IP 54 protection class

Easily connects to any service port with the integrated 45° angled connector

Use the testo 552i Bluetooth vacuum probe for fast, simple, and accurate vacuum measurement through just one service port – with no refrigerant loss. In the testo Smart App, you’ll have numerous smart functions—for example, you can see the vacuum just by glancing at the graph in the App or on the manifold’s display. Thanks to the robust, convenient casing and proven sensor technology, the vacuum probe will be your reliable partner for measurements in refrigeration, air conditioning, and heat pump systems.

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Description

testo 552i – App-Controlled Vacuum Smart Probe

testo 552i, controlled via the App, allows for wireless measurement through just one service port. The probe is durable, easy to use, and provides accurate results, making it the ideal assistant for proper evacuation of refrigeration systems, air conditioning systems, and heat pumps.


Key Features of the testo 552i
  • Allows for wireless and hoseless vacuum measurements through just one service port and without refrigerant loss.
  • testo Smart App: ensures fast and simple vacuum detection with a graph and alerts when limit values are exceeded (e.g., via smartphone vibration).
  • Automatic Bluetooth Connection: the probe connects to the testo Smart App or to testo 557s or testo 550s manifolds, allowing results to be viewed on the manifold’s large display.
  • Convenient and durable casing with IP 54 protection class.
  • Integrated connector with a 45° angle for easy installation on any service port.
  • Consistently high performance and proven Testo quality.

Technical Data (Order No. 0564 2552)
Absolute Pressure Measurement (Vacuum)
Measurement Range:0 … 26.66 mbar / 0 … 20000 micron
Accuracy:±10 micron + 10 % of meas. val. (100 … 1000 micron)
Resolution (0 … 1000 micron):1 micron
Resolution (1000 … 2000 micron):10 micron
Resolution (2000 … 5000 micron):100 micron
Overload (Absolute):6.0 bar / 87 psi
General Technical Data
Weight:142 g
Dimensions (LxWxH):150 x 32 x 31 mm
Operating Temperature:-10 … +50 °C
Storage Temperature:-20 … +50 °C
Protection Class:IP54
Product Color:Black/Orange
Battery Type:3 AAA micro cells
Battery Life:39 h
Auto-off:10 min*
Connection:7/16“ UNF
Interface:Bluetooth® 4.2
System Requirements:iOS 13.0 or newer required; Android 8.0 or newer required; mobile device with Bluetooth 4.2 required

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