Product details 【 ACCURATE AND RELIABLE 】: Our fingertip oxygen accurately monitors measure O2 level, Pulse Rate in 8 seconds. And display it conveniently on a large digital LED display. 【 BUILD-IN MEMORY 】: Up to 12 groups data of O2 level and Pulse Rate in record list screen. Quickly view your last 12 times historical data with one click. 【 SPOT CHECK MODE 】: After 30s of measurement, the pulse rhythm analysis result will be displayed on the screen. 【 COME WITH ACCESSORIES 】: Includes 2 x AAA batteries placed and removed easily, a carry pouch to protect the device, and a lanyard for convenient carry. Specifications MODEL：PC60F DISPLAY：OLED Display WEIGHT：1.83oz / 52g DEVICE DIMENSIONS：2.20'' x 1.34'' x 1.18'' OXYGEN TRANSDUCER：Dual-wavelength LED sensor OXYGEN LEVEL RANGE：70%-100% PULSE RATE RANGE：30 to 240 bpm PERFUSION INDEX (PI) TANGE：0%~20% BUILT-IN MEMORY：12 sets data POWER SUPPLY：2 x AAA alkaline battery; 3.0V DC Package include 1X Finger Pulse Oximeter 2X AAA Batteries 1X Lanyard 1X Carry Bag Note: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use. On Feb 20, 2023 at 00:23:33 PST, seller added the following information: On Apr 16, 2023 at 19:54:26 PDT, seller added the following information: