Abstract: An exemplary aspect comprises an apparatus comprising: (a) a microprocessor; (b) a wireless transmitter/receiver in communication with the microprocessor and operable to communicate over a wireless network with an application on a mobile device; (c) a light sensor in communication, via the microprocessor and the transmitter/receiver, with the application, and operable to detect and report ambient light levels in a vicinity of the apparatus; and (d) an accelerometer in communication, via the microprocessor and the transmitter/receiver, with the application, and operable to detect and report motion of the apparatus. In various exemplary embodiments, the apparatus may further comprise (and/or instead comprise): (1) a temperature sensor; (2) a humidity sensor; (3) a microphone; and/or (4) a passive infrared sensor.