Abstract: There are disclosed monitoring and advanced asset recovery devices and systems (“MAARS”). In an embodiment, a MAARS device includes a housing, a circuit board fixedly attached to the housing, affixed to the circuit board is a processor/microcontroller/minicomputer, electronic components to support the microcontroller, sensor modules, wireless modules, a power source, and an antenna. Each of the microcontroller, electronic components, sensor modules, wireless modules, and power source form an integrated circuit and are in communication with one another. The monitoring and advanced asset recovery device is configured to be installed inside a container where the device will measure and monitor a number of variables to determine the status, condition, and location of the container. Other embodiments are also disclosed.