Various embodiments of the present technology may comprise a system disposed within a structure comprising a network of individually addressed devices for providing building safety, security, and operational efficiency. Each device in the network may comprise a microcontroller electrically connected to a communication module, at least one output module, and/or at least one sensor module. The sensor module may produce data corresponding to a particular sensed environmental condition within its vicinity and may transmit a signal to the microcontroller based on the data for processing to identify the particular sensed environmental condition. In various embodiments, the microcontroller may communicate with any number of addressable devices in the network to effect selective activation of output modules and/or sensor modules. In some embodiments, the microcontroller may communicate with remote systems external to the network, such as building operation systems, building fire suppressions systems, and first responder notification systems to appropriately respond to the particular sensed environmental condition.