Cheap Pulse Oximeter Unboxing & Testing

I bought this cheap pulse oximeter and I tried it out to see if it really works. I kept my breath two times to see if the pulse slows down and move back up when starting breathing again :)
Here are some links where you can find a similar cheap oximeter:
Amazon: amzn.to/3ne6OZr
AliExpress: s.click.aliexpress.com/e/_A7ieOn

[@fromturkiye8672]

If your heart rate is 100 bpm even though you've been sitting for a long time, it's high.

[@franciscotech8944]

Hjärtstopp under sin Hjärtmonitor på vaden det är ( 0 BPM ------) Asylsökande men O2 0