The Digit® Finger Oximeter delivers fast, reliable oximetry in an extremely handy, pocketsize solution by combining the monitor and sensor into one unit. While it's small in size, Digit® is big on performance, providing SpO2, pulse rate and pulse strength measurements on patients from pediatric to adult. This affordable, non-invasive device offers the convenience clinicians appreciate in EMS, hospital or clinical environments, as well as home use. Product Features: Easy-to-use one button keypad. Easy-to-read, large LED display. Runs on standard AAA batteries. Auto power shutdown after 8 seconds. Low battery indicator. High-impact polycarbonate shell. Product Benefits: Rugged design for high durability. Proven Accuracy. SI3420G Digit® Finger Oximeter, Color : Gray. SI3420Y Digit® Finger Oximeter, Color : Yellow. Digit® Finger Oximeter Accessories SI1900 Finger Oximeter Operation Manual SI3426 Digit® Lanyard SI3427 Digit® Carrying Case SI3429 Digit® Battery Compartment