Referring now to FIGS. 13-16, several different embodiments for selecting a language are discussed. The discussion of FIGS. 13-16 may reference audio kit portion 628 that exists in image portions 608 and 610 and the software update processes of FIGS. 7-10. FIGS. 13A-C shows several block diagrams illustrating an out-of-the box language selection. That is, when a user initially turns on her hazard detection system, she may be prompted to choose one of several different languages. For ease of discussion, assume that the hazard detection system is preprogrammed with two different languages, but it is understood that any suitable number of languages can be programmed therein, provided sufficient NVM storage is available. FIG. 13A shows illustrative image portions 1310 and 1320, which may be similar to image portions 608 and 610 of FIG. 6A. Image portions 1310 and 1320 may include code programmed at the factory. Each of image portions 1310 and 1320 can include several subportions as described with reference to FIGS. 6A and 6B, but only the manifest portions (1312 and 1322) and audio kit portions (1314 and 1324) are shown. Manifest portions 1312 and 1322 can specify which software version is contained therein and audio kit portions 1314 and 1324 specify which audio kit is contained therein. As shown, both images are programmed with firmware version 1.0, and image portion 1310 is programmed with an English audio kit and image portion 1320 is programmed with a French audio kit.
