does not work

Two worked perfectly but one does not work at all

it does not work, even with batteries, when turning it on, ti turns off by itself

Two worked perfectly but one does not work at all

This product does not work

the product is defective, does not read oxygenation well, and no return policy .Do not buy this product.

This doesn’t work very well on cold fingers but does better with warm fingers

It does feel very flimsy and like it won’t last a long time at all