The upgraded SantaMedical Generation 2 SM-165 Oxi Fingertip Pulse Oximeter provides an accurate way to check pulse rates and blood oxygen saturation levels quickly. This item is suitable for use at home or on the go. It boasts a self-adjusting finger clamp and a simple one-button design that allows for easy operation. This fitness monitor comes in a small portable size, making it easy to handle, carry and store.