Wk-688l Pressure Vacuum Meter Measuring Portable Regulating Digital Display Refrigeration Air Conditioning Home Manifold Gauge ,Corrosion Resistance

Easy Use: The refrigerant meter and the vacuum gauge are switched to each other, which is convenient to use. High Performance: Built-in database of 82 refrigerant pressures and corresponding temperatures. Function: Can measure vacuum pressure and indicate the degree of vacuum as a percentage. Long Life: With battery low voltage prompt, the battery life is 30 hours. Fitment: Suitable for WK-6881H, 6881L.