Pilot Study to Verify Effect of Smartpen Coordinated With Glucose Sensor.

Exclusion Criteria

• •1. Subject is unwilling or unable to use insulin pen(s).
• •2. Subject is in plans to use or is already using an insulin pump.
• •3. Subject is currently using a non-Medtronic standalone CGM system and unwilling to use only the Guardian 4 system during the study.
• •4. Subject has any unresolved adverse skin condition in the area of device placement (e.g. psoriasis, rash, Staphylococcus infection).
• •5. Subject is actively participating in or plans to enroll in an investigational study (e.g. drug or device), other than this study, wherein they have received treatment from an investigational drug or device.
• •6. Subject has a positive urine pregnancy test at time of screening.
• •7. Subject is unwilling to participate in study procedures.
• •8. Subject is directly involved in the study as research staff.
• •9. Subject with poorly controlled thyroid or celiac disease.
• •10. Subject with any risk of exposure to MRI equipment, diathermy devices or other devices capable of generating strong magnetic fields