Abstract: A sensor assembly includes a sensor configured to detect at least one material or condition, such as a smoke detector, fire detector, or carbon monoxide detector. The sensor assembly also includes a base configured to be mounted on a structure, such as a wall or ceiling, and to receive the sensor. The sensor assembly further includes a wireless module located between the sensor and the base. The wireless module is configured to transmit position information. The wireless module may include one or more electrical contacts used to form at least one electrical connection between the base of the sensor assembly and the sensor. The wireless module may also include a printed circuit board having the contacts, wireless radio circuitry, an antenna, and other components. The printed circuit board could be substantially hidden from view when the sensor is attached to the base and the base is mounted on the structure.

Abstract: A sensor assembly includes a sensor configured to detect at least one material or condition, such as a smoke detector, fire detector, or carbon monoxide detector. The sensor assembly also includes a base configured to be mounted on a structure, such as a wall or ceiling, and to receive the sensor. The sensor assembly further includes a wireless module located between the sensor and the base. The wireless module is configured to transmit position information. The wireless module may include one or more electrical contacts used to form at least one electrical connection between the base of the sensor assembly and the sensor. The wireless module may also include a printed circuit board having the contacts, wireless radio circuitry, an antenna, and other components. The printed circuit board could be substantially hidden from view when the sensor is attached to the base and the base is mounted on the structure.

Abstract: A low profile, low volume smoke chamber displaces a light source, such as a light emitting diode or laser diode, and a sensor, such as photodiode or phototransistor, to the exterior of the sensing volume. A symmetrical sensing volume results which can be coupled to symmetrical input/output ports via a generally U-shaped flow path. A two part sensing chamber housing is formed with a lower cylindrical base portion and an upper cylindrical cover portion which slideably engage one another. At least the upper cylindrical portion carries a plurality of grooves for suppression of reflections and collection of dust. An exterior end of the upper portion carries a plurality of spaced apart openings which can be filled with a screen. A reduced sensing volume in combination with a selected screen size produces an acceptable signal to noise ratio and response rate while still excluding insects and other non-smoke related particulate matter.

Abstract: An improved compact disc holder is disclosed for the safe and convenient temporary storage of a digital optical compact disc. The disc holder may be adhesive backed for conveniently mounting to a flat surface or alternately the disc holder may be incorporated into a weighted base to be self supporting. Advantageously, the disc holder provides one or more surfaces for the prominent display of an advertisement.

Abstract: An improved compact disc holder is disclosed for the safe and convenient temporary storage of a digital optical compact disc. The disc holder may be adhesive backed for conveniently mounting to a flat surface or alternately the disc holder may be incorporated into a weighted base to be self supporting. Advantageously, the disc holder provides one or more surfaces for the prominent display of an advertisement.

Abstract: An improved compact disc holder is disclosed for the safe and convenient temporary storage of a digital optical compact disc. The disc holder may be adhesive backed for conveniently mounting to a flat surface or alternately the disc holder may be incorporated into a weighted base to be self supporting. Advantageously, the disc holder provides one or more surfaces for the prominent display of an advertisement.

Abstract: A long life, surface mountable ambient condition detector includes a non-replaceable battery for the purpose of providing power to the detector. The detector includes an activation switch mechanism having a one-time, or single use turn-on characteristic. The activation switch mechanism switches the battery once from a non-conducting state to a state of electrical conduction with a control unit of the detector. The switch mechanism may include a frangible member for switching the battery from the non-conducting state to the electrical conducting state. Until the detector has been energized, the frangible member blocks mounting of the detector on the surface.