The TestoKool 523 is a low-cost digital gauge set for contractors. It provides precise high and low side pressures (up to 725 psi, 0.1 psi resolution, 0.5 percent FS accuracy) and saturation temperatures (0.1 degree F resolution) for up to 38 refrigerants on its backlit display. It can measure superheat and subcooling values automatically in seconds with a line temperature probe.
Testo Inc.
www.testo.com
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