A system for determining the estimated remaining use of a brake assembly of a vehicle, comprising: a sensing device including: sensing circuitry configured to generate position data corresponding to movement of a wear pin indicator configured to indicate translation of a disc stack of a brake assembly relative to an actuator housing of the brake assembly, and wherein the sensing circuitry is configured to generate the position data using electrical power, and conditioning circuitry configured to provide the electrical power to the sensing circuitry; a thermoelectric generator configured to provide the electrical power to the conditioning circuitry, wherein the thermoelectric generator defines a hot node and a cold node, and wherein the thermoelectric generator is configured to produce the electrical power based on a temperature gradient between the hot node and the cold node; a heat sink configured to transfer heat from the cold node to an environment surrounding the brake assembly; a sensor housing mechanically supporting at least the sensing device, the thermoelectric generator, and the heat sink; and a mounting bracket mechanically coupled to the sensor housing, wherein the mounting bracket is configured to attach to the actuator housing, and wherein the mounting bracket is configured to transfer heat from the actuator housing to the hot node to generate the temperature gradient when the mounting bracket is attached to the actuator housing. a sensing device including: sensing circuitry configured to generate position data corresponding to movement of a wear pin indicator configured to indicate translation of a disc stack of a brake assembly relative to an actuator housing of the brake assembly, and wherein the sensing circuitry is configured to generate the position data using electrical power, and conditioning circuitry configured to provide the electrical power to the sensing circuitry; sensing circuitry configured to generate position data corresponding to movement of a wear pin indicator configured to indicate translation of a disc stack of a brake assembly relative to an actuator housing of the brake assembly, and wherein the sensing circuitry is configured to generate the position data using electrical power, and conditioning circuitry configured to provide the electrical power to the sensing circuitry; a thermoelectric generator configured to provide the electrical power to the conditioning circuitry, wherein the thermoelectric generator defines a hot node and a cold node, and wherein the thermoelectric generator is configured to produce the electrical power based on a temperature gradient between the hot node and the cold node; a heat sink configured to transfer heat from the cold node to an environment surrounding the brake assembly; a sensor housing mechanically supporting at least the sensing device, the thermoelectric generator, and the heat sink; and a mounting bracket mechanically coupled to the sensor housing, wherein the mounting bracket is configured to attach to the actuator housing, and wherein the mounting bracket is configured to transfer heat from the actuator housing to the hot node to generate the temperature gradient when the mounting bracket is attached to the actuator housing.