... very dura 3 Protective power switch and back-up power interface Feature1. CE Certificated2. Alloy metal stents, spray technology, ... 9. Easy operation, simple and clear.10. International standard interface, could match with any anesthesia machine.Technical Specification1.Drive: ... . Power:220V,50HZ or 110V,60HZ2. Input power: No more than 60VA3. Maximum input current:5A4. Main power entrance fuse: ...