A Study of a Non-invasive Glucose Measuring Device in Out-patient Settings

Inclusion Criteria: * Male and female subjects minimum 18 years of age * Individuals diagnosed with any type of insulin-dependent diabetes mellitus ≥ 1 year * Willing to perform up to 12 finger-pricks during each day of out-patient measurements * Signed informed consent * For women of childbearing potential: Willing and able to practice FDA approved birth control during the duration of the investigation * Subject has a 2.4 GHz wireless internet connection at home (standard in normal routers) to be used in the study Exclusion Criteria: * For female subjects: Pregnancy or breastfeeding * Skin phototype VI categorized by Fitzpatrick scale measured on thenar * Subjects not able to understand and read local language * Cognitive impairment, or in investigator's opinion, subject is not able to follow instructions provided and as specified in the protocol * Subject not able to hold hand/arm steady (including tremors and Parkinson's Disease) * Extensive skin changes, tattoos or diseases on right thenar (measurement site) * Reduced circulation in right hand evaluated by Allen's test * Known allergy to medical grade alcohol * Hemodialysis * Systemic or topical administration of glucocorticoids at the right hand for the past 7 days or during the study period expected * Any disorder, which in the investigator's opinion might jeopardize subject's safety or compliance with the protocol * Severe diabetes-related complications such as advanced autonomic neuropathy, kidney disease, foot ulcers, legal blindness, or symptomatic cardiovascular disease as evidenced by a history of cardiovascular episode(s) * Dependency from the sponsor or the clinical investigator (e.g. co-workers of the sponsor, the study site, and/ or their families) * Subjects currently participating in another study * Subjects who have participated in the study IDT-1904-RO/RSP-21 or RSP-19. * Incapacity for consent