Monitoring and maintaining pulse and oxygen levels can be critical for the health of those looking to exercise safely and effectively. This professional quality Fingertip Pulse Oximeter from Drive Medical provides noninvasive spot-checks of oxygen saturation levels in the blood and heart rate. The Pulse Oximeter is perfect for sports enthusiasts, pilots, or anyone who wants to monitor this essential information. Features and Benefits Large Easy-to-Read LED Display Screen Displays SpO2 and pulse rate Low power consuption, Auto-off function Approximately 30 hours of normal operation Accommodates a wide range of finger sizes from pediatric to adult Product Specifications Actual Product Weight: 0.11 lbs Batteries: 2 - AAA Battery Duration: 30 Hours Display Type: LED Operating Relative Humidity: 15-90 Percent Operating Temperature: 41 to 104 deg F Overall Product Height: 1.18" Overall Product Length: 2.2" Overall Product Width: 1.26" Primary Product Color: White Primary Product Material: Plastic Pulse Rate Accuracy Range: + / - 2 Percent Pulse Rate Display Range: 0-254 bpm Pulse Rate Measurement Range: 30-235 bpm SpO2 Accuracy Range: + / - 3 Percent SpO2 Measurement Range: 70-90 Percent Storage Temperature: -4 to 131 deg F Warranty: 2 Year Limited Model # mq3000