Abstract: Monitoring and/or tracking systems and devices and methods for making and using the same are described. In some configurations, a system includes the following components: a stationary mounting surface defining an environment; a transmitter coupled to the stationary mounting surface; and a switch having a closed state and an open state. In various configurations, the switch is coupled to the stationary mounting surface and is in electrical communication with the transmitter. In various configurations, the switch occupies the closed state when the environment is in a first condition, the switch is toggled to the open state when the environment is in a second condition and the switch returns to the closed state when the environment returns to the first condition. In some configurations, the transmitter transmits discrete electrical signals corresponding with the closed state and the open state of the switch, respectively. Other embodiments are described.