Abstract: A message device to be installed at a location for storing a message left by a visitor for an intended recipient while the intended recipient is absent from the location. The message device includes a housing to be installed externally of the location where it can be accessed by visitors to the location. The housing includes a substantially-planar writing surface upon which a paper can be placed while the visitor writes the message to be left for the intended recipient on the paper, an aperture in which the paper can be inserted once the visitor has completed the message, and a cavity for receiving the paper inserted into the aperture and storing the paper until the paper is later retrieved by the intended recipient. A writing utensil is provided to be retrievable by the visitor when the visitor is located adjacent to the housing for writing the message on the paper.

Abstract: A non-attached monitoring device includes monitoring assembly and an antenna configured to radiate signals from the monitoring assembly. The antenna is configured to radiate through the oriented attenuating body of the tire sidewall regardless of the position of the monitoring device with respect to the tire sidewall. In one embodiment, the antenna has a body that is looped back on itself. The body may be parallel to or perpendicular to the antenna ground plane. In another embodiment, a radiating slot antenna is configured to provide transmissions through the tire sidewall regardless of the position of the monitoring device.