Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. World's first self-contained digital finger pulse oximeter - incorporates the electronics and the sensor into one unit * Proven accuracy and durability * Simple automatic on/off operation * Does not require a sensor * Very small size; convenient to carry at any time * Easily Affordable * Oxygen Saturation Range 0-100% * Pulse Rate Range 18-300 BPM * Power Supply Two AAA Alkaline Cells * Battery Life Approximately 12 Hours Continuous * Dimensions and Weight 1.3"W x 1.3"H x 2.25"L - 1.27 ounces * Intended Use Spot checking or attended-care monitoring of adult or pediatric patients with finger thickness between 0.3 and 1.0 inches * As of January 30, 2006 this unit comes with a Standard 2 Year Warranty! *