A computer implemented method and system for configuring and managing a security system wirelessly is provided. In particular, one or more fiber Bragg gratings exhibiting a resonant wavelength less than the short wavelength edge of a predetermined continuum are inscribed into a section of highly nonlinear fiber and used to generate the additional light peaks. At least one further indicator of at least one current device operating condition may further be received. By clicking on a second level search category, the user is linked to a plurality of corresponding third level search categories, which are also pre-selected by the service provider. The adjusted ideal reductant dosing command may be further adjusted to reflect high frequency variations in the SCR system, before a final reductant dosing command is generated for a reductant injector.