OMNIHIL AC/DC Power Adapter Compatible with Pari Trek S Compressor Nebulizer System Compressor Model: 047B1000 04781000 S/N: AC08F07644 AC09C05094&tilde; Wall Charger Adapter Rating: World Wide 100V ~ 240V 50/60Hz All products are tested to exceed/meet standard specification OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) FREE RETURN SHIPPING / 5 YEAR FREE WARRANTY