Features for Fingertip Pulse Oximeter: - Reliable accuracy and durability- Two Color OLED Display、 four display modes.- 4-Direction Display adjustable.- Low voltage indicator、 Real-time spot-checks.- Low power consumption、50 hours continuous to work.- Low Perfusion ＋0.4%- Automatic power off when no signal- Small and light weight、 convenient to carry- Widely used in hospital、 home healthcare、 oxygen bar、 community medical centre、 alpine area、 sports healthcare etc.Specification for Fingertip Pulse Oximeter:Display OLED two color displaySpO2 Measurement range: 70゛99%Resolution: ＼1%Accuracy: ＼2% (70%゛99%)、 unspecified (<70%)Pulse rate Measurement range: 30゛240 bpmResolution: ＼1%Accuracy: ＼2bpm or ＼2% (select larger) Low Perfusion ＋0.4%Power 1.5V (AAA size) alkaline battery x 2Supply voltage: 2.6~3.6VWorking current ＋30mAAutomatic power-off Automatically power off when no signal in the oximeter for more than 8 secondsDimension & Weight 130 (L) ～ 100(W) ～60(H) mm65g(without batteries)Optional Color:- Pink- Blue- Light Purple- Green- GrayPackage Content:- 1 x RPO-8A Fingertip Oximeter- 1 x Lanyard- 1 x English user's manualNote:We will not include batteries、 according to China and International law、 batteries are not allowed for international air transportation for the safety of shipping and protection environment.