Technical parameters: Rated voltage: 220v-240v, 110v-120v, 110v-240v Frequency: 50/60hz Max.Current: 10a Max. Power: 1.1kw, 1.5kw Starting pressure setting: 1.2bar, 1.5bar, 2.2bar Max.Working pressure: 10bar Connection thread: r1" Protection rating: ip65 Max.Working temperature: 60c 12 pieces per box.