A tracker apparatus, and method thereof for tracking deployable units are provided. The tracker apparatus includes a first sensor group having a first power consumption profile; a second sensor group having a second power consumption profile; a communication circuit having a first network interface for communicating with a control server; an energy storage; a processing circuitry; and a memory, wherein the memory includes instructions that, when executed by the processing circuitry, configure the tracker apparatus to: trigger the processing circuitry to awaken from a low power mode, in response to a first input from a first sensor of the first sensor group exceeding a first threshold; activate a second sensor of the second sensor group in response to the first input corresponding to an unauthorized movement; and activate a tracking mode of the tracker apparatus, in response to a second input from the second sensor corresponding to an unauthorized movement.