PRODUCT DESCRIPTION It's crucial to keep track of your health. For this reason, the Beurer Fingertip Pulse Oxygen Monitor comes in handy for anyone suffering from health problems, or simply engaging in strenuous physical activity. The device allows for proper measurement of arterial oxygen saturation (SpO2) and heart rate (pulse). The easy-to-use, portable, this device becomes a handy tool to use at home or on the go. With a low product weight of only 2 ounces, this oxygen monitor becomes a practical for athletes and nurses. The adjustable colored display allows for measurements to be read both horizontally and vertically. Some other features include adjustable brightness, automatic switch-off, and low battery indicator. These are the Highlights for Beurer PO30: - Oximeter with pulse rate - Digital colored display with adjustable display brightness - 4 available display formats including graphically shown pulse - Easy and quick measurements through fingertip - Extra features: automatic switch-off & low battery indicator - Perfect for use at home and on the move - Suitable for those with heart and/or pulmonary problems, or for sports. - Batteries and accessories included. Note: Low blood perfusion can affect accuracy of your readings. Warm your hands and fingers before taking your measurements by rubbing your hands together. Remember your pulse oximeter is measuring your SpO2 and PR based on your blood flow. If the blood flow in your finger drops below a certain level, the pulse oximeter will not be able to function. It usually takes 10 seconds to get a reading. Some people though may require a longer time for the pulse oximeter to optimize its sensitivity. You may have to wait about 30 seconds for the readings to stabilize. Keep your hand still while taking a reading - any movement can cause the device to reset its' reading. Nail polish and fake fingernails may cause false readings. If possible, switch to an unpolished nail or consider another application site. MANUFACTURER CONTACT INFORMATION Beurer North America