The Salter Fingertip Pulse Oximeter is the perfect choice for on-the-spot SpO2 and Pulse Rate testing. A pulse oximeter is a small gadget that is clipped onto the tip of your finger to measure your blood oxygen levels. A small beam of light is emitted from the device to take the reading. With a simple one-button operation, it is quick, non-evasive and painless. This device measures Oxygen Saturation - how much oxygen is being carried by the haemoglobin in your blood (SpO2), Pulse Rate- how fast your heart is beating (PR) and Perfusion Index (PI). The Salter Pulse Oximeter is light, portable and has an LED screen that displays your measurements in a matter of seconds with a live graph of your pulse. To help prolong the battery life, the device will automatically turn off after inactivity. Devices like this one are widely used by the NHS and doctors to monitor respiratory illnesses such as bronchitis, asthma or pneumonia. Pulse oximeters are also widely used by those who enjoy travelling, hiking and sports.