Meditech FOs3+ is a Full Color high-clearance TFT monitor with 4 display modes and the brightness can be adjustable. Alarm sets for low voltage, abnormal SPO2 and PR. It will be automatically power off without signal. Inner flash memory sets for more than 30 hours data storage. Advanced software for sleep study and monitoring. Full Color monitor, (Pixels: 160*128, 256K color) 1.3" Built-in memory stores up to 24 hours of downloadable data (USB cable included). 4 different display modes Adjustable brightness settings. Built-in, switchable alarms for SpO2 and pulse rate. Pulse histogram and SpO2 wave display USB interface ensures convey of SpO2 data, (Wireless option) Easy to use & high accuracy Small in size, and easy to carry and Light weight of 45g, batteries included Battery voltage indication: color graph Auto power-off after 4 seconds without signal 3.7V Rechargeable Lithium Polymer Battery (Charger: USB and AC charger) Synchronous display on the oximeter and computer Inner flash memory for more than 30 hours data storage Advanced software for sleep study and monitoring Power consumption: less than 20mA (wireless and alarm not work).