Review on 🔗 50F Plus Bluetooth Wrist Pulse Oximeter Heart Rate Monitor with Innovo SnugFit Probe - Mac Incompatible, Charging Not Included by Tommy Penn

I have central nervous system sleep apnea. My oxygen level in my heart rate drops during the night. This is a great way to keep things from getting too low. I set my oxygen level to 88 and my heart rate to 40. If it falls below this value, the alarm will sound and wake you up. Without an alarm clock, things go wrong in my handbag, which has probably saved my life several times. I actually have two of these just to make sure I get the alarm.