Measuring Hydration Levels of Healthy and Heart Failure Patients Before, During, and After an Electrophysiology (EP) Procedure

"AleriTM sensors are worn on the bicep or forearm and communicates through BLETM to a mobile App. The data is sent through the mobile App to web-based system processing where PHI is calculated and sent back to the mobile App.~The AleriTM sensor has a form factor similar to a conventional arm band, with a hockey puck shape of approximately 48mm in diameter and 15mm in thickness the AleriTM sensor is a non-significant risk (NSR) device as it does not meet the definition of significant risk device (21 CFR 812.3(m)) because it is: not an implant; is not purported or represented to support or sustain human life; its use is not of substantial importance in the diagnosis, cure, treatment, mitigation, or prevention of impairment of health; and it does not present a serious risk to the health, safety, or welfare of a subject."