Check out my demo and review of the Testo 557 digital manifold.
Check superheat and subcooling very easily and quickly. Built in pressure temperature chart for many refrigerants.
I dunno by grapes (c) copyright 2008 Licensed under a Creative Commons Attribution (3.0) license. dig.ccmixter.org/files/grapes/... Ft: J Lang, Morusque
Weather HipHop Instrumental Track by Xalpheric (c) copyright 2015 Licensed under a Creative Commons Attribution (3.0) license. dig.ccmixter.org/files/Xalpher...
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