(Can add Bluetooth) Features 1.Three parameters:SPO2, Pulse Rate, and TEMP 2.Spo2 waveform(PLETH), PR strength display 3.2.8 inch color TFT LCD in real time display, displayable in big font and big screen 4.Unique software for telemonitoring by transmitting data synchronously via Internet 5.Long time monitoring and sleeping monitoring 6.Storage/Review trend data up to 3888 groups, data save time interval settable 7.Via USB or bluetooth wireless to upload history data to PC for review, printing or storage 8.Audio and visual alarm when parameters exceeded and sensor-off 9.Common AA alkaline batteries to support 6 continuous working hours 10.Battery capacity indicator. Automatic shutdown for power saving 11.AC Power is OK Standard accessories one Adult finger SpO2 sensor one TEMP skin probe one PC software CD one USB cable one Bluetooth Selected accessories one AC charger