
I use it with my CPAP almost every night. I wasn't sure if cpap was doing its job, but this little thing proved it. Late night readings show O2 readings every minute along with your blood pressure and exercise. I compared the BP to the watch's BP and they always matched almost perfectly, very little difference. I can get readings for two nights before needing to recharge. I have no problems with the battery. To further test the monitor, I missed a few nights with cpap to see if the threshold was actually alerting me when my O2 was low. I set it to 85% and went to sleep. The monitor vibrated and woke me up every time I went below 85%, which eventually brought me back to 99% O2. The end of the night reading showed all the ups and downs in the levels. I am happy with this monitor.

Portzon Women'S Waist Trainer: Weight Loss, Sweat Belt, Sauna Trimmer, Tummy Toner, Lumbar Support
47 Review

Metal Frame Night Driving Glasses For Men: BIRCEN HD Anti-Glare Night Vision Glasses For Safe Driving
47 Review

Stay Comfortable And Stylish With DASUTA Sweatbands For Women And Men
55 Review

Segmented Beaded Kids Jump Rope For Exercise And Outdoor Activities - Durable And Shatterproof - Easily Adjustable And Light Weight Skipping Rope For Kids
48 Review

Black BAOFENG UV-5R Dual Band Two-Way Radio
68 Review

BAOFENG UV-5R5 Dual Band Two-Way Radio: 5W Power, VHF & UHF, Complete Kit with Large Battery (Camo)
57 Review

The Friendly Swede Collapsible Bucket With Lid, Folding Bucket For Camping, Travel & Gardening, Portable Water Bucket W/ A Handy Tool Mesh Pocket, Collapsible Water Container, Camping Water Container
50 Review

Sailun Ice Blazer WST3 225/60 R18 104T winter
59 Review