This is exactly what I needed. I am being treated for elevated resting heart rate, along with medication I am now easily able to keep track of and monitor my heart rate throughout the day. Upon pressing the power on button simply place finger inside and within 7 seconds you have a accurate real time reading of heart rate as well as spo2. Product uses 2 AAA batteries (included). Has a nice protective silicone cover installed over it as well. Highly recommend.

I recently purchased this AccU-rate CMS 500 DL Finger Pulse Oximeter. We are very active in the gym and our physician was interested in my husband's heart rate and oxygen saturation when lifting heavy. We bought this model because it is the same as our doctor uses in his office.

We also chose this particular model because the device was designed so the user can view the display, versus being like most pulse oximeters that are designed for another person to have the advantage of being able to read the display.

Now that we own the device, we found that we like the numbers on the display being large enough to easily read without glasses in the gym. Also the numbers on the display are clear versus appearing pixelated like some lesser quality digital displays.

We like so many other design features. The lanyard has a clip so the device can release from the lanyard without having to take it off over the head. Also, the medical grade silicone padding where the finger rests makes the device comfy. Other products feel uncomfortable as they clamp hard plastic onto the sensitive part of the fingernail.

We're not certain we'll use the really nice soft plastic (possibly silicone?) cover. If it stays on and doesn't come off then it can be nice to protect the device from sweat, thereby allowing us to wear it during exercise. It's good that the display is visible while using the cover.

We both appreciate good packaging. It's all the packaging details that give the first impression it's a quality product. The device rests in a box designed just for the device. There is a nice thin piece of foam just to protect the top of the device should the box become crushed. There was protective film to protect the display and it removed easily. It's really nice that the batteries are already installed and activated with a quick removal of a plastic pull strip. Hubby really liked that the user manual was well written and chock full of technical information. I liked that it also had quick and easy to understand instructions.

All in all, the AccU-rate pulse oximeter looks like it will last a long time and be a pleasure to use.

This always seem to read lower O2 values than what my Dr. readings. Not sure if there is a way to calibrate the numbers.

Update:
If you thought customer service was a thing of the past then you have not purchased a product from Med Shop & Beyond. Based on my review I received and email from Nikki at Med Shop & Beyond with suggestions on how to use the meter to obtain the correct readings. After trying the suggestions I was still having a problem and I responded to Nikki and the next thing happen is what surprised me. Nikki sent me another email with her phone number asking me to call her so we could discuss my concerns. After talking with Nikki she understood my concerns and offered to send me a new device after she personally tested it.

I received a shipment confirmation email and a few days later I received the new device. I followed the instructions and it is providing the expected readings.

I will continue to do business with Med Shop & Beyond based on their customer service

For a long story short, I was in the hospital and had to be put on oxygen. I was on it at night while I slept but didn't need it during the day that much, and eventually was put on a cpap machine for sleep apenea. I still needed to monitor the amount of oxygen I get periodically through the day. I also like to keep track of my heart rate because it tends to be on the fast side. This works fine...my readings were about what the nurses were getting when they'd come in and check on me. I'm not oxygen any more but still use it to make sure I don't drop too much. I use it and compare results to my parents the information is fairly accurate but it depends on what finger I have it on and how I have my hand positioned/

My husband has pneumonia and was released from the hospital on a Thursday. One of his symptoms while in the hospital was a very low oxygen saturation rate of 85. He was discharged with an all clear after two days. NOTE: 2 days prior to his discharge I ordered this Acc U Rate. Pro from Amazon and I had it when he came home from the hospital. Two days after his release from the hospital my husband was not feeling well and I took his oxygen saturation rate. It was 85!! I immediately drove him back to the hospital where they started oxygen and breathing treatments. If I had not ordered this unit my husband would have been in dire straits.