Exclusive only to FSW UK – The testo 558s (manifold only) coloured touch screen with Bluetooth and 4-way valve block for commissioning, servicing and maintaining refrigeration systems and heat pumps. Designed for precision and performance, it offers real-time trend analysis, A3 & A2L compatibility, and an all-in-one solution for HVACR professionals.
includes:
558s Coloured Touch Screen 4 Way Manifold only with Sightglass.










