Re-wearable physiological monitoring device

A re-wearable physiological monitoring device includes a reusable component and a disposable component. The reusable component includes an electronics module and a latching system for latching the reusable component to the disposable component. The disposable component includes an adhesive patch to be adhered to a user's skin, two electrodes to receive electrical signals from the user's skin, a cradle for the reusable component to be latched on, and a battery to power the device. The disposable component may include a "battery disconnect switch" for disconnecting the battery when the reusable component is not latched on; a gasket for isolating each contact between the reusable component and the disposable component in a waterproof enclosure; and a printed contact within the disposable component that is resistant to scratching. A latching system for the device may include two snap fasteners, alignment feet for keeping the reusable component aligned with the disposable component, and an asymmetrical wall to pre