Testo 552i App Operated Wireless Vacuum Probe

0564 2552 01
0564 2552 01
Minimum Purchase:
1 unit
A2L Compatible?:
  • Testo 552i App Operated Wireless Vacuum Probe
  • Testo 552i App Operated Wireless Vacuum Probe
  • Testo 552i App Operated Wireless Vacuum Probe
  • Testo 552i App Operated Wireless Vacuum Probe
MSRP: $220.00
Price: $187.00
— You save $33.00


Testo 552i App Operated Wireless Micron Gauge

With the testo 552i wireless vacuum probe including Bluetooth, you can measure vacuum wirelessly, quickly, easily and precisely via just one service connection - without any loss of refrigerant. The testo Smart App supports you with numerous intelligent functions - you recognize e.g. vacuum immediately at a glance through the graphic visualization in the app or on the display of the digital manifold. Thanks to the rugged, handy housing and proven measurement technology, the testo 552i vacuum probe is compact and reliable for vacuum measurements on refrigeration and air conditioning systems as well as heat pumps.


  • For wireless and hose-free vacuum measurement on refrigeration and air conditioning systems as well as heat pumps via just one service connection without loss of refrigerant
  • Handy, rugged housing with protection class IP 54
  • Automatic connection via Bluetooth: testo 552i connects to the testo Smart App or to the appropriate digital manifold from Testo, e.g. testo 557s, testo 550s - you can also read measured values conveniently on the large display of your manifold
  • Testo Smart App - everything at a glance: quickly and easily recognize vacuum through graphical visualization in the app, alarms in the event of critical values, e.g. by vibration of the smartphone
  • Continuously high performance under all conditions: You can rely on the testo 550s manifold - it combines proven Testo quality with a high level of ruggedness
  • Integrated 45° angle for easy installation on every service connection


Testo 552i Vacuum Probe
Pressure Range 0 to 20,000 microns (0 to 26.7 mbar)
Pressure Accuracy
± 1 digit
±10 microns + 10% of m.v.
(100 to 1,000 microns)
Pressure Resolution 1 micron (0 to 1,000 microns)
10 microns (1,000 to 2,000 microns)
100 microns (2,000 to 5,000 microns)
Vacuum Connection 7/16" - UNF
Overload 87 psi (relative: 72psi)
Compatibility Requires iOS 11.0 or newer
Android 6.0 or newer
Requires mobile device with Bluetooth 4.0
Bluetooth Range up to 425 feet
Storage temperature -4 to 122 °F
Operating temperature -14 to 122 °F
Battery type 3 AAA batteries
Auto power off After 10 minutes when not connected via Bluetooth
Protection class IP54
Dimensions 5.9 x 1.3 x 1.2 in


  • (1) Testo 552i App Operated Wireless Micron Gauge


Software / App

Download the Testo Smart App for your Android or iOS devices today!

Google Play Store Apple App Store

Welcome to the new, digital age of measurement technology. With the testo Smart App, you turn your smartphone into a mobile, multi-functional command center for all applications involving refrigeration, air conditioning and heating systems. Together with the Bluetooth-enabled measuring instruments and Smart Probes from Testo, this equips you optimally for the future. And everything which comes after it.

All applications of the new digital manifolds on your smartphone: With the new testo Smart App, you can evaluate results even faster Additionally, it helps you to avoid measurement errors, as stored measurement programs guide you step by step through the configuration and measurements. With the integrated documentation functions, reports can be created on site, and digital measurement protocols, including photos, can be sent as PDF or CSV files directly by e-mail. You can also set up customer data and measurement sites at the touch of a button, and synchronization with the free testo DataControl PC software is done wirelessly via Wi-Fi.

Works with:

  • All Testo 550s, Testo 557s and Testo 550i digital manifolds
  • All Testo smart probes
  • Testo 552i vacuum gauge
  • Testo 770-3 clamp meter

App Features:

  • All in one - All Smart Probes and Bluetooth-capable Testo measuring instruments for refrigeration, air conditioning and heating systems and heat pumps combined in one App
  • Quick and easy - Measurement menus for a wide range of applications facilitate quick and easy configuration and performance of the measurement
  • Graph of values - Measured values are displayed in graphic form to enable quick reading of the results
  • Document and share - Easy creation of digital measurement protocols and documentation including photos as well as sending via e-mail

Testo Smart App Images
View AllClose