Cost-effective, portable, continuous or spot check pulse oximetry monitoring system with alarms and an internal rechargeable battery provides fast, reliable SpO2 and pulse rate measurements on patients from neonate to adult. Clinician, Home-Use and Sleep Study modes make it ideal for use in the hospital or clinical environment; during emergency or land transport; or for in-home use. Stores data for later sleep screening analysis via a PC or commercially available printer. Product Features: Three operating modes. Menu-free operation via one-touch, direct-function keys. Pulse strength bar on screen. Easily adjustable LED display. Adjustable alarm limits for SpO2 and pulse rate. Product Benefits: Rugged Design. Bright, easy to read LED display. Clinician, Sleep and Home modes. Internal Rechargeable Battery. PC Compatible. Full Alarms. SI3303 BCI® 3303 Hand-Held Pulse Oximeter with Rechargeable Battery and Alarms SI3303MDD BCI® 3303 Hand-Held Pulse Oximeter with Rechargeable Battery and Alarms, MDD version