Gauge Scales:Aluminium body, digital gaugeRefrigerants: All refrigerants available, max 4 different refrigerants in each gaugeTemperature: or Pressure: Psl, Bar, Kgcm3, mmHg, max 2 units in each gaugeHose: 3-36'', 3-60'', 3-72''; 500-2500Psi, 600-3000Psi, 800-4000Psi