Finger Pulse Oximeter, Fingertip Blood Oxygen Saturation Monitor | with Heart Rate, Pulse Rate, Respiratory Rate Displaying (with Lanyard)

Used it twice then wouldn't work next time I needed to use it.

Different reading on gp one and hospital reading.

It’s is so accurate and only takes a few seconds to tell you the reading and with my COPD it’s a must. Very happy with it

Does exactly what it says good price