This is one of the best SantaMedical Pulse oximeters for measuring the accurate and the most reliable heart rate values and the oxygen saturation levels. The product is designed to make absolutely no compromise with the accuracy and it is perfect for people who are suffering from any problems of heart rate and oxygen saturation. There are many sports persons and also the hikers, mountaineers, skiers, bikers and others who want to keep the periodic health check in consideration can have this product at home. Buy the highly portable and easy to operate SantaMedical SM-110 oximeter in the most reasonable prices today.