The newly SM-165 SantaMedical Gen 2 Finger Pulse Oximeter is an affordable and accurate way to check pulse rates and blood oxygen saturation levels. Self-adjusting finger clamp plus simple one-button design of the SantaMedical Finger Pulse Oximeter allows for easy operation. The small portable size makes it easy to handle and carry. Helpful for athletes and pilots to obtain quick and accurate oxygen saturation readings.