Review on IProven Pulse Oximeter: Accurate Blood Saturation And Heart Rate Monitor With Batteries, Case & Lanyard - OXI-27Black (Black/Red) by Quinton Dawon

I have copd so keeping track of my vitals is something I like to stay on top of oxygen saturation is important to stay on top of .

I misplaced my pulse ox and snagged this one up to take its place , after this one arrived I found my old one so I have been able to do side by side testing and have found they both give me identical readings ( my old one was much more expensive when I bought it ) so I am very pleased with this one . now I can have one at home and put one in the car for when I am away from the house and know I am getting accurate readings !