Zacurate FSA/HSA Eligible 500CL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries and Lanyard Included (Sapphire Blue)

Works very well and easy to use

It's easy to use, and easy to see the numbers. It comes with clear instructions. I like it.

This works very well! I need to check my oxygen level often and this is very accurate.

The bright red LED display makes this among the easiest to read pocket pulse oximeters in the trade. If you think that this is a minor detail, try reading one of the LCD display models from the competition in low light or bright light with sunglasses. I am an athlete and wilderness first responder and use this item in field settings where the extra seconds to get a good reading is a nuisance at best, but ease of use is always a good thing when other distractions are present.I dinged this unit a star on accuracy for a couple of reasons: first, it struggles to get a pulse in really bright sunlight. My guess is that enough extraneous light leaks in around the finger “cuff” to prevent the sensor from getting a fix on the pulse. Second, it is near impossible to get a reading on heavily pigmented or calloused skin. I’m the guy whose TouchID programming might last three or four days at best because of callouses and cracked skin (landscaper and rock climber) so, yes, this is an issue. Third, if your fingers are cold or wet or you suffer from Raynaud Syndrome you WILL NOT get a pulse reading and hence, get no pulse ox reading.On the plus side, this and other pocket pulse oximeters are cheap, light and run forever on two AAA batteries. It’s a worthy investment for the athlete measuring oxygenation or for the first aid jump kit, just be aware of the limitations.

Product is accurate and simple to use

Works great

works at a reasonable price

Easy to use and fast results.