A holder for securing a sensor against a skin surface includes a body element made of a foam material. The body element has a recess formed therein configured for receiving and containing a sensor. A backing element is positioned proximate a face surface of the body element for closing the recess. An adhesive element is coupled with a face surface of the body element opposite the backing element for adhering the body element to a skin surface so a sensor contained therein presses against the skin surface. A back pad made of a foam material is configured for being positioned in the recess to underlie a sensor received in the recess. The back pad is configured to be compressed within the recess when the body element is adhered to a skin surface to provide a contact force for directing the sensor against the skin surface.
