The Testo 552 digital vacuum gauge is designed for the evacuation of heat pumps, air conditioning, and refrigeration systems. This innovative digital vacuum gauge utilizes a sensor that requires no ...
The TestoKool 523 digital gauge set is designed for air conditioning, refrigeration, and heat pump maintenance. It features high-side and low-side pressures (up to 725 psi, 0.1 psi resolution, and 0.5 ...
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