[measurement is accurate and reliable] The pulse oximeter consists of advanced chipsets and infrared detectors and is certified by medical professionals [Easy to use] Just put your finger in it and press the button The measurement result is displayed on the LED display within 10 seconds Use practical and simple pewter ties Enter your heart rate, oxygen saturation and real-time pulse bar graphs [humanized design, portable] The combination of silicone softness and ergonomic structure brings extraordinary experience The large and clear LED display is easy to read Using a portable Schmitss to measure heart rate and blood oxygen anytime and anywhere in the portable Schmits anhr [Automatic shutdown, long battery life] The oximeter automatically turns off within 5 seconds without finger recognition, which saves power[Wide range of applications] The portable pulse oximeter is suitable for home and outdoor use, eg B for families and athletes