Specification Brand : CONTEC MEDICAL SYSTEMS Label : Contec Medical Systems Co., Ltd Manufacturer : Contec Medical Systems Co., Ltd Model : CMS50M PackageDimensions_Weight : 0.220462262 PackageDimensions : L:4.649999995257 X W:2.9099999970318 X H:1.7299999982354 ProductGroup : BISS Basic ProductTypeName : BLOOD_OXYGEN_MONITOR Publisher : Contec Medical Systems Co., Ltd SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31tPuCqlGdS._SL75_.jpg SmallImage_Width : 75 Studio : Contec Medical Systems Co., Ltd Title : CONTEC MEDICAL SYSTEMS CMS50M Black Pulse Oximeter SpO2 and PR Value Waveform Blood Oxygen Neck/Wrist Corda Weight : 0.2 WeightUnit : pounds