A PAYLOAD MONITORING DEVICE FOR A MOTOR VEHICLE

The invention relates to a system (10) for monitoring payload of a vehicle (100), characterized in that it comprises: - at least one wireless transmitter (12) comprising a piezo-resistive pressure sensor (22), a transceiver (26) and a battery unit (24), encapsulated in an insulating casing (28), the at least one wireless transmitter (12) being configured to be attached to an axle beam (102) of the vehicle (100) and to emit a wireless signal in response to a mechanical strain of the axle beam (102), - a wireless receiver (14) configured to receive the wireless signal from the at least one wireless transmitter (12).