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