Patent ID: 7277019
Filing Date: 2007-10-02
Classification: G01W

Abstract:
1. An apparatus for detecting an environmental agent, capable of being inserted into an electronic device having an imager and a processor, the apparatus comprising: a substrate; one or more colorimetric reagents on the substrate; data bars positioned on the substrate adjacent to the colorimetric reagents, the data bars depicting information about the one or more colorimetric reagents; and one or more reference colors positioned on the substrate adjacent to the colorimetric reagents, each of the one or more reference colors associated with one of the one or more colorimetric reagents; wherein, when the apparatus is inserted in the electronic device, the imager is capable of detecting colors of the one or more colorimetric reagents and the one or more reference colors and reading information from the data bars, the processor determines whether the environmental agent is present based upon whether any colors of the colorimetric reagents have changed.