Wellue Pulse Oximeter Fingertip Blood Oxygen Saturation Heart Rate Monitor with Batteries and Lanyard Bluetooth FS20F White

Great product. Well made and fits my finger better than the other models Ive tried.

It is a quick easy to use device.

Trying to give you a five stars the first one would not light up though the product is great thank you

The instrument appears worth the low price. I have not be able to check all the software features. I just downloaded. the support software from Google.Read the warnings on its use regarding infr red light and wear time. I am not sure that these warnings are unique to this instrument and may apply to similar products.The product was ordered 3/12 with next day arrival mention the Amazon discription., however it was not received until 3/15.The product gives similar results but not exactly the same results of my old instrument, But my old instrument was about 5 years old. I am satisfied with my purchase. I will keep the instrument for general use but may look for something else due to my unique situation to measure over extended periods of time.

Excellent product, easy to read and operate. Prompt shipment

Works great

Works like it should.

Came with batteries and a strap. But, the pulse oximeter doesn't work consistently. My pulse read 91, 94, and 25 in three tries within 15 minutes. I had expected that the oxygen measurement would change with deep breathing, the way it does with the oximeter in the doctor's office. But, it did not. I'm returning this because I cannot trust the measurements.