Testo 550s Heat Pump Entry Level KitYour advantages The testo 550s digital manifold with large graphic display, exceptionally compact and reliable thanks to its practical robust housing with protection class IP 54 Includes Bluetooth and 2 way valve block with 2 x testo 115i wireless clamp temperature probes The testo 560i digital refrigerant scale with automatic and precise refrigerant charging according to target superheat, subcooling and weight thanks to the intelligent valve A3 and
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