Testo India Pvt. Ltd.
Testo India Pvt. Ltd.

Refrigeration & Vaccum Gauges

Digital Manifold for Commissioning, Service and Maintenance

Humidity Measuring Instrument
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Model ID: Testo 557

Testo 557-The new digital manifold testo 557 is suitable for all measurements on a refrigeration system or heat pump. It also has robust 4-way valve block with additional connection possibilities. With the Bluetooth App integration, it is now very convenient to finalize and send the measurement report directly on site by to reading off the measurement data on a Smartphone or tablet.




  • App integration via Bluetooth for fast and convenient monitoring and reporting on site
  • 4-way valve block for fast and efficient work
  • Refrigerant update in the instrument via App

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