Specificity measure of performance of the Irregular Heartbeat Detection algorithm (evaluated for the finger and wrist form factors) against the Masimo Radius VSM® reference ECG. Each form factor will be evaluated independently of one another

Inclusion Criteria:

• Subject is 18 to 80 years of age.

• Comfortable to read and communicate in English.*

• Subject passes the health assessment conducted by qualified study personnel, confirming they are in adequate health to participate in the required procedures

  • This is to ensure the participant can provide informed consent and can comply with study procedures (as study material are currently available in English only).

Exclusion Criteria:

• Subject currently has a known cardiac disease condition.
• Subject is pregnant or breastfeeding.
• Subjects with a skin condition affecting the digits/chest, where the sensors are applied which would interfere with the path of lights (e.g., psoriasis, vitiligo, eczema, angioma, scar tissue, burn, fungal infection, substantial skin breakdown) or sensor adhesion.
• Skin condition which would preclude proper ECG placement.
• Subjects with nail polish or acrylic nails on the digits where sensor needs to be applied, who opt not to remove them.
• Subject is allergic to any supplies used in the study (e.g., ECG gel, adhesives).
• Subject has any medical condition which in the judgment of the investigator and/or study staff, renders them ineligible for participation in this study or subject is deemed ineligible by the discretion of the investigator/study staff.