Made in Chian from Careshine Medical Co.，Ltd 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.Package Content:- 1 x RPO-8A Fingertip Oximeter- 1 x Lanyard- 1 x English user's manual