A health monitor that includes a spring, a spacer, a housing that comprises a front panel and an oximeter that includes a window. The spring is mechanically coupled to the housing and comprises a spring top portion. The spring top portion is configured to move between (a) a first position in which a majority of the spring top portion does not exceed the front panel by more than a centimeter, and (b) a second position in which the majority of the spring top portion exceeds the front panel and is oriented to the front panel. The spacer is of millimetric height, surrounds at least a majority of the window and is positioned between the window and the spring top portion.