Digital Pressure Temperature Gauge, Number of Valves 2, Multiple Refrigerants, Number of Hoses 0, 0 to 700 psi, 0 to 700 psi, +/-1.00 Percent, 1/4 in, Plastic, Calculates Superheat, Subcooling, Pressure, Temperature and Measures Vacuum, Includes 1/4 in Access Port for Charging System