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All activities, from measurement through to documentation, using the testo Smart App on your Smartphone
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The smallest digital manifold on the market
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High robustness with IP54 protection class and compatibility with A3 and A2L refrigerants
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Optionally expandable with testo Smart Probes for temperature, humidity and vacuum
The testo 550i app-controlled digital manifold with Bluetooth ®, 2-way valve block and sturdy hook offers extensive measurement technology in an exceptionally compact format. Use this extremely robust manifold to carry out your everyday work on refrigeration and air conditioning systems and heat pumps wirelessly, with ease and reliability. All using the testo Smart App on your smartphone or tablet.