Onyx 9500
February 26, 2010 10:48 am Health and FitnessI purchased the Onyx 9500 about four years ago because I have problems with spells of asthma and a decrease in lung capacity. With the Onyx I am able to keep track of my saturation rates and take better control of my health. I like the fact that the readings are so accurate and I do not have to guess about what I am doing. It is durable and mobile. My doctor recommended that I purchase the Onyx for my home use. It is such a great product to have and I have recommended it to my friends and other loved ones.