The pulse oximeter is a device for checking oxygen saturation (SpO2) and pulse rate. It is a compact, reliable monitoring device with an OLED display that runs on batteries. The Easypix PO2 Pulse Oximeter with Bluetooth is used to measure arterial oxygen saturation (SpO2) and pulse. The oxygen saturation indicates what percentage of the haemoglobin in the arterial blood is loaded with oxygen. The pulse oximeter uses two light beams of different wavelengths to measure, which hit the inserted finger inside the housing and are set in relation to the measurement. The arterial oxygen saturation is then calculated and clearly shown on the pulse oximeter display. Batteries not included. Specifications Colour: Blue and White Guarantee: 2 years Compact and hygienic device Fast and Accurate Free app available for Android and iOs Bluetooth built-in for use with smartphone Built-in OLED display Requires 2 x AAA batteries - not included #html-body [data-pb-style=“60FF6AB0D835D”]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}#html-body [data-pb-style=“60FF6AB0D836B”]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}