Available Now: OxyKnight Watch, Sleep Oximetry Monitor! For a limited time only, enjoy 20% off your OxyKnight Watch with the code OKWATCH. (Discount is automatically applied at checkout).

Shop Now


1. Please check if you are using the USB data cable, not the Power cable. The correct USB data cable should have a bulky end that plugs into the PC and should be labeled with “USB”. The USB data cable is included with every PC-66H and PC-66L unit.
2. If you are using the correct USB data cable, but still getting COM error. Please search and run “Device Manager” in the Windows Search. Check if you have Prolific USB-to-Serial Comm Port under Ports, as shown below. If not please download and run this USB Driver, choose Repair if prompt, and check Device Manager when finished installation

 If you have the Prolific USB-to-Serial Comm Port show up, please make sure you have the device ON with the data upload screen at all time when you perform data upload in the software. You will need to finish all uploading process, including data selection and uploading to the patient record, while the device data upload screen is ON.

Orders placed on Monday - Thursday will be processed and shipped from our warehouse the next business day. Orders placed on Friday - Sunday will be processed and shipped on Monday. You will receive the USPS or UPS tracking number by email once your order is shipped. * Shipping and delivery time may subject to changes during holidays. Please refer to our Holiday Shipping Suggestions for details.

CMI Health Store only accept orders from the United States. For international order, please contact info@cmihealth.com for assistance.

USPS Priority Mail shipping to the United States – order delivery within 1-3 business days from ship date. USPS First Class shipping to the United States – order delivery within 2-4 business days from ship date. Shipping to Alaska, Hawaii and other US territories may require extra time.

Yes. Our site is SSL certified and hosted by Shopify. Credit card transactions are secure and processed using Shopify payment or other third party payment gateways. CMI store believes in providing a safe and secure online shopping experience for our customers. For more detail, please see our Privacy Policy here.

CMI Health Store facilitates ordering with Debit/Credit Cards (such as Visa, MasterCard, Discover and American Express), Paypal, Shop Pay, Apple Pay and Google Pay. We do not accept C.O.D. orders or electronic checks.

Both of our PC-66 Series devices are equipped with the ability to sound an alarm if your reading drops below the threshold value. You can manually set your own values in the device to better suit your needs and lifestyle.

Yes, you can still operate the device while it is pugged in and charging.

For those that use the device overnight, we suggest purchasing the PC-66L Rechargeable Handheld Pulse Oximeter. Though both the PC-66H and the PC-66L can be used for continuous overnight monitoring, users tend to save money over time on battery costs when using the rechargeable version. Keep I mind, you can still use the device while it is charging!

Muting the alarm will only block out the standard beeping. If your readings go below your set threshold values, the device will still sound an alarm to alert you.

Pulse oximetry measures the percent of blood hemoglobin that is oxygen rich. It functions by passing a red beam of light into the fingertip. The oxygen level is then determined by measuring how much light passes through the fingertip vs how much is absorbed. 

We suggest using the Soft Rubber/Silicone sensors #84 for overnight use. It is an overnight sensor that is designed to fit more comfortably on the user's finger during sleep. The stronger grip helps to prevent the sensor from moving or falling off during unconscious movement.  

While it is not necessary to do so, many parents have begun monitoring their infants overnight and during naps as a preventative measure against Sudden Infant Death Syndrome (SIDS). Low oxygen levels can be a key early indicator of major issues that are often involved in SIDS. Consult a pediatrician if there is concern. Click here to view our Infant Foot Sensor #72.

translation missing: en.general.search.loading