Study of a Novel Non-invasive Glucose Monitoring Device

Inclusion Criteria: * Male and female subjects ≥18 years of age * Diagnosed with diabetes, all types except gestational diabetes * HbA1c distribution \> 60 mmol/mol at baseline visit * Skin phototype 1-4 * Willing to perform a minimum of 8 finger sticks during each day of home-based measurements and 30 finger sticks at the two in-clinic study days * Subject has a wireless internet connection at home to be used in the study Exclusion Criteria: * For female subjects: Pregnancy or subject is attempting to conceive or not willing and able to practice birth control during the study duration * For female subjects: Breastfeeding * Subject currently participating in another study * Subject not able to understand and read Danish * 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) * Reduced circulation in right hand evaluated by Allen's test * Extensive skin changes, tattoos or diseases on right hand thenar (probe application site) * Known allergy to medical grade alcohol used to clean the skin * Medical history or any condition that may, in the opinion of the investigator compromise the subject's ability to participate * Comorbidity or concomitant medical condition which, in the opinion of the Investigator, could interfere with the study or present a risk to the safety or welfare of the subject or study staff