The KD Pulse Oximeter, model number 5482, is a Class II medical instrument manufactured in China. This device is designed for family applications and functions as a manual pulse oximeter. The product is constructed from a variety of materials, including acrylic, metal, plastic, steel, wood, and resin. It features a plug-in power supply mode, although it is also described as having a manual power source. The oximeter comes with a one-year warranty and a one-year shelf life, supported by "ce" quality certification and the GB/T 18830-2009 safety standard. After-sale service includes free spare parts.