Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate Measurements and Pulse Bar Graph, Portable Digital Reading LED Display, Batteries and Carry Case IncludedACCURATE, RELIABLE, & QUICK READINGS - Clinically tested and proven consistent results. Receive blood SpO2, Pulse Rate, and Pulse Strength results within 8 to 10 seconds on large digital red LED display.SpO2, P..