پالس اکسیمتر Checkme O2

It's incredibly user-friendly: simply turn it on, choose the mode, and get instant readings. The Vihealth app is intuitive as well, though initially finding the serial number was a bit tricky (a heads-up for others!). But the real standout is the valuable information it provides. It's helping my doctor understand my condition better, revealing dips in my O2 saturation down to the 80s. My initial concern about the thumb ring's sturdiness was unfounded - it's surprisingly durable! Not only has it survived daily use, but it proved invaluable during my COVID-19 recovery, tracking my lingering O2 fluctuations. Even better, it helped a friend with suspected sleep apnea confirm their condition thanks to the clear data it captured. Their doctor readily accepted the device's readings, highlighting its accuracy. After years of use, I can confidently say this is a 5-star O2 monitor. It's reliable, effective, and has provided life-changing insights for myself and others. Highly recommended!