Zacurate Pro Series 500DL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicon Cover, Batteries and Lanyard (Royal Black)

there were instructions for easy use. Batteries were included.

I work in the medical field and have also had Covid twice, and I’m diagnosed with with Peripartum Cardiomyopathy (which is pregnancy induced heart failure; the only heart failure that you can recover from) so I fully aware of how pulse ox’s are supposed to work and can tell when they are faulty. I even did the “3 minute walk test” with this one and it didn’t miss a beat. My last one I tried for a while was faulty, would say my o2 was 90 when it definitely was not - you would know if you were at 90, trust me. I felt fine. So I’m giving this a 5 Star because it is accurate and durable at detecting your o2 even while in motion. Note: the best way to record your o2 is at rest. The physician that I work for has us do the 3 minute walk test with patients who’s o2 is in question, regularly.

Works great checked with my doctors office they said it was a good idea to get it.

Exelente lo disfrutaré mucho

Works as advertised.

It’s sturdy and seems to work well.

Easy to read and understand display for oxygen and heart rate

As described did come with a soft shell style cover

Checking my blood oxygen.

Easy to use and seems accurate. Helpful to keep track of oxygen level.