Nonin Medical, inventor of the fingertip pulse oximeter most-trusted by respiratory therapists, is making our clinically proven PureSAT pulse oximetry technology available for home use. The small, portable, noninvasive GO2 Achieve personal pulse oximeter is easy to use and provides just the right amount of pressure to display fast, accurate readings of your blood oxygen saturation level and pulse rate. The automatic on/off power of the LCD screen makes operating the device easy and convenient. The accurate and reliable readings that the Go2 Achieve provides can be trusted by runners, bikers, climbers, pilots and other sports enthusiasts. The product is accurate in cases of low perfusion and dark skin tones with scientifically proven accuracy. The information provided by our highly accurate Nonin GO2 Achieve personal oximeter will help you meet your personal health and wellness goals and give you peace of mind. The GO2 Achieve fits a wide range of finger sizes from pediatric to adult. It is not a medical device, so it does not require a prescription and does not require FDA clearance. The product is made in the USA and comes with an easy-to-follow user guide and 1 AAA battery and is backed by a 2 year manufacturer warranty. Available in blue, green, orange, pink, red and white colors.