Pulse Oximeter Blood Oxygen Saturation Monitor for Heart Rate Monitor and SpO2 OLED Display

ok!

ok!

I do not recommend this product! It came without protection, it has some scratches, bumps. Exceeded delivery date, and doesn't even work... won't turn on!!!

At first glance it looks qualitative. It works well but I will test it already if it looks correct.

Works well.

Everything went well.

The product corresponds to its price. Works quickly and quite accurately. The image on the screen is clear and bright. The image on the screen does not flip, if this is important to someone, then keep in mind. Assembled well, nothing loose. Clear secondary plastic, not smooth.

Some kind of bullshit depicts my heart rate, sometimes I’m in a coma. And the % of blood oxygen saturation is also lying. Do not buy! The previous oximeter was much better quality. I will make a refund

It doesn't work badly, but the entire menu is in English. But everything seems to be clear, who understands the language. Everything is as in the summary. The battery cover is loose.

There is no need to return the money, I am ready to return two orders to you at my own expense. Deliver a quality product, there cannot be two products in a row that do not work...!

Came, works! The batteries should be small and properly inserted. When you measure, you have to put your hand on something and not twitch, then it shows quickly

Doesn't work. Defective. Very sorry. JOOM, pay attention !!! You sell low-quality products.

I installed batteries, but every other time it shows and turns off. And sometimes it doesn’t turn on at all. What to do? I'm not happy with the product

Doesn't work, installed batteries, doesn't work

Works poorly, but works, arrived quickly

The product corresponds to the description, thank you

Doesn't work, shows no signs of life

The product corresponds to the description on the website.

Doesn't work, won't turn on

Convenient device. Thank you.

Everything is fine, it works

It works, thanks

Does not work.

Does not work

lying