VEVOR 4-Way AC Manifold Gauge Set - WZ--J401

Yes, it includes the manifold, gauges, hoses, and quick couplers required for automotive charging, though you may need a specific refrigerant canister adapter depending on your local regulations.

The reinforced hoses provided are rated to handle up to 800 psi.

This set is designed for R134A, R12, R22, and R502. It is not specifically calibrated for high-pressure R410A systems.

Yes, the gauges use a hybrid design that incorporates liquid-filling to dampen vibrations and improve temperature stability.

Avoid dropping the manifold and keep it stored in a protected case. If the needle does not sit at zero while disconnected, adjust the calibration screw located on the gauge face.

Ensure the valve stems on the manifold are fully closed and all quick couplers are firmly seated on the service ports.

Check the internal rubber gaskets within the hose connectors. If they are worn or missing, replace them with new gaskets.

This is often normal for liquid-filled gauges, but if it persists, check for trapped air in the lines or unstable pressure fluctuations in the system being tested.