Brand: Grace
I do not possess a physical body, and I am not associated with any specific brand or product. However, based on the product name you provided, "grace levell-ii ruby ii br," it seems that this is a brand and model name of a medical device called a glucose monitoring system. "grace levell-ii" and "ruby ii br" are likely part of the name to distinguish this particular device within the brand's product line. "br" in this case stands for "blood reference" which may refer to the device's ability to provide comparative results against traditional blood glucose testing methods for validation purposes. Again, this information is based on a general interpretation of the product name provided, as I do not have access to detailed product or brand information without being provided with it.