The Nonin Onyx Vantage 9590 is a valuable tool in any situation where a fast and accurate reading of blood oxygen saturation and pulse rates are needed * The Nonin Onyx Vantage 9590 fingertip pulse oximeter is intended for use by health professionals * Clinician-facing brilliant easy-to-see LED SpO2 and pulse rate can be read from any angle day or night * Three-color pulse quality indicator LED Provides a quick assessment of patient pulse quality * Nonin s proven PureSAT© SpO2 technology for accuracy in the widest range of patients and settings * One product for both pediatric to adult patients * Accommodates a wide range of finger thicknesses: 8 mm to 25.4 mm (0.3 to 1.0 ) * Proven durability * The Onyx is proven tough enough to withstand a minimum of 50 drops * Automatic turn on and off for fast and easy spot checks * Portable - Take the Nonin Onyx Vantage 9590 anywhere * Weighs less than two ounces * Made in USA