A Usability Study of a Multi-channel ECG Monitoring Device

Inclusion Criteria: * Adult \>18 years old and able to consent * Capable of using a smartphone app * Willing to shave patch area if needed Exclusion Criteria: * Planning to undergo an MRI during the study period * Known allergic reaction to adhesives or hydrogels or with family history of adhesive skin allergies, or any other dermatological conditional that could confound placement or results * Presence of pacemaker, ICD or other implanted electronic devices * Open wounds, lesions or infected or inflamed areas of skin at the placement site (left-center of chest/sternum) * Pregnant or intending to become pregnant during the course of the study