Economical, yet super reliable finger pulse oximeter used for a non-invasive spot-check measurement of function oxygen saturation of arterial hemoglobin (SpO2). Extremely lightweight, total weight is 50 grams including batteries Two AAA batteries and can be continuously operated for 30 hours with a auto-shutoff in not in use for extended battery life. SpO2%, PR is displayed on screen. The Nikomed Pulse Oximeter is light weight, compact and weights 50 grams including the batteries. There is an indication of low power consumption.