AccuMed CMS50D Pulse Oximeter Finger Pulse Blood Oxygen SpO2 Monitor (Blue) – Perfect for Exercise Enthusiasts and AthletesThe CMS50D is one of the latest in a line of high quality medical instruments from AccuMed, carrying a tradition of excellent designs and reliable product builds. Foscam Digital Technologies is the authorized US distributor of AccuMed products and every authentic unit is guaranteed by Foscam’s 1 Year USA Warranty, making the CMS50D one of the best values available for a pulse oximeter purchase (list of features and specs provided below).Easy to Use:SpO2 and Pulse Rate are graphed on the bright LED display. The LED display cover prevents ambient light washout, making readings crisp and clear.Battery Saving:Conserving battery life with auto-off feature when a user’s finger has been removed for more than five seconds enable you to perform over 40 hours of continuous operating time with two AA batteries (included).Safe and affordable:This FDA approved device offers speed and ease of use at an affordable price.Specifications:Boasts an operating temperature range of 5°C-40°C, in humidity from 15%RH-80%RH, and is a lightweight 1.8 ounces.Includes:AccuMed CMS50DLanyardConvenient Carrying CaseAAA BatteriesInstruction Manual