NONIN PULSE OXIMETER
Nonin Medical - Inventor of the Finger Pulse Oximeter
Made in the USA - Finger pulse oximeter from Nonin Medical are all made in the USA.
Hospital Grade - Nonin pulse oximeters are FDA cleared for accuracy and are hospital grade oximeters used in clinical and home settings for over 20 years.
Durable - Nonin finger oximeters like the Nonin Onyx Vantage model 9590 comes with a 4 year warranty.