facelake fl-350 pulse oximeter with carrying case & batteries & lanyard, pink facelake this facelake fl350 pink finger pulse oximeter is designed for pilots or any sport enthusiasts who want to obtain their spo2 (blood oxygen saturation levels) and pr (pulse rate) on the go.taking a reading is easy, just clip it on to your finger and turn it on at the press of a button. the large display makes viewing the results a snap. its small size makes it easy to carry around and a lanyard is also included for added convenience. features a battery-saving automatic power off function. we stand by our products with excellent customer service and a one-year warranty. note: this product is intended for sports and aviation use only and is not a medical device. from the factory, there is a clear screen protector which can be removed before use.