Multi-function Digital Manifold Gauge Set features an easy to read digital display for 56 different refrigerant types and a variety of temperature and pressure units. The gauges are pulsation proof and automatically calibrate to zero at start up at any elevation up to 16.000 feet. It can accurately measure the refrigerant temperature and pressure near the outlet of the evaporator and condenser as well as the corresponding pressure conversion and temperature index of the refrigerant saturation. The unit includes 3 high pressure, color coded 72" hoses and has 2 valves.