The Snap-On Tools Dual Refrigerant A/C Manifold digital gauges are high-quality automotive hand tools designed for accurately measuring refrigerant levels in both AC and DC systems. Made in the United States, this unit is durable and reliable for professional use. ensures compatibility with various vehicles, making it a valuable addition to any mechanic's toolbox. With a Snap-On brand reputation known for excellence in automotive tools, this product is a must-have for any mechanic working with A/C systems.