FIG. 2 shows an illustrative block diagram of hazard detection system 205 being used in an illustrative enclosure 200 in accordance with some embodiments. FIG. 2 also shows optional hazard detection system 207 and router 222. Hazard detection systems 205 and 207 can be similar to hazard detection systems 105 and 107 in FIG. 1, enclosure 200 can be similar to enclosure 100 in FIG. 1, and router 222 can be similar to router 122 in FIG. 1. Hazard detection system 205 can include several components, including system processor 210, high-power wireless communications circuitry 212 and antenna, low-power wireless communications circuitry 214 and antenna, non-volatile memory 216, speaker 218, sensors 220, which can include one or more safety sensors 221 and one or more non-safety sensors 222, safety processor 230, alarm 234, power source 240, power conversion circuitry 242, high quality power circuitry 243, and power gating circuitry 244. Hazard detection system 205 may be operative to provide failsafe safety detection features and user interface features using circuit topology and power budgeting methods that may minimize power consumption.
