Next-Generation Digital Manifold


Recognizing the needs of the market and building upon its expertise in refrigeration, Testo has introduced its next-generation 550 Digital Manifold for better performance, precision, and convenience.

The new generation is more rugged thanks to an additional metal frame for the display, which makes it water- and dirt-resistant. The menu structure has been further simplified with the use of an ESC button and extended by automatic functions.

A total of 60 refrigerants, existing plus new generation, have been added to the on-board memory.

The Bluetooth function wirelessly integrates Smartphones or tablets, via free app, with the 550 and provides the users with convenient analysis, monitoring, test report and invoice generation. The measurement data can then be sent via email from the job site directly to the customer or back to the office. The digital manifold instrument includes two NTC temperature clamp probes, a service case, and calibration certificate.


  • Refrigerants Memory: 60
  • Communication: Bluetooth / App
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