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The Fieldpiece SM480V 4-port SMAN Refrigerant Manifold is a wireless and digital tool designed for HVAC professionals. With four valves and the ability to measure temperature, pressure, and perform tests, this manifold is a versatile instrument for servicing refrigeration systems. Made in the United States, this product offers accurate readings in micron vacuum units, making it a reliable tool for diagnosing and repairing HVAC systems efficiently.