Monitoring device for monitoring goods, in particular goods transported in transport containers, having - a base body which can be arranged on the goods, in particular on the transport container, - a floating body, which is detachably arranged on the base body by means of a decoupling device and is permanently connected to the base body by means of a connecting means, wherein the floating body is locked to the base body by means of the decoupling device in a first operating state and is released from the base body in a second operating state, the second operating state being activated in the event of the monitoring device falling overboard during sea transport, - a status monitoring unit with a position monitoring unit arranged in the floating body, which has a receiver for receiving signals from a satellite navigation system, and - a transmission unit arranged in the floating body, which is connected to the status monitoring unit for data transfer, characterized in that the position monitoring unit is configured to determine the position of the floating body in the first operating state and in the second operating state, and the status monitoring unit is further configured to transmit the position data determined by the position monitoring unit to a wireless data network in the first operating mode and in the second operating mode, wherein the status monitoring unit has an acceleration sensor and is configured to detect at least one of the following states depending on acceleration signals obtained by means of the acceleration sensor: - vibration, - deceleration, - violation of defined acceleration limits, wherein the transmission unit is configured to transmit the status data determined by the status monitoring unit to the wireless data network by means of the transmission unit. - a base body which can be arranged on the goods, in particular on the transport container, - a floating body, which is detachably arranged on the base body by means of a decoupling device and is permanently connected to the base body by means of a connecting means, wherein the floating body is locked to the base body by means of the decoupling device in a first operating state and is released from the base body in a second operating state, the second operating state being activated in the event of the monitoring device falling overboard during sea transport, wherein the floating body is locked to the base body by means of the decoupling device in a first operating state and is released from the base body in a second operating state, the second operating state being activated in the event of the monitoring device falling overboard during sea transport, - a status monitoring unit with a position monitoring unit arranged in the floating body, which has a receiver for receiving signals from a satellite navigation system, and - a transmission unit arranged in the floating body, which is connected to the status monitoring unit for data transfer, characterized in that the position monitoring unit is configured to determine the position of the floating body in the first operating state and in the second operating state, and the status monitoring unit is further configured to transmit the position data determined by the position monitoring unit to a wireless data network in the first operating mode and in the second operating mode, wherein the status monitoring unit has an acceleration sensor and is configured to detect at least one of the following states depending on acceleration signals obtained by means of the acceleration sensor: - vibration, - deceleration, - violation of defined acceleration limits, wherein the transmission unit is configured to transmit the status data determined by the status monitoring unit to the wireless data network by means of the transmission unit. characterized in that the position monitoring unit is configured to determine the position of the floating body in the first operating state and in the second operating state, and the status monitoring unit is further configured to transmit the position data determined by the position monitoring unit to a wireless data network in the first operating mode and in the second operating mode, wherein the status monitoring unit has an acceleration sensor and is configured to detect at least one of the following states depending on acceleration signals obtained by means of the acceleration sensor: - vibration, - deceleration, - violation of defined acceleration limits, - vibration, - deceleration, - violation of defined acceleration limits, wherein the transmission unit is configured to transmit the status data determined by the status monitoring unit to the wireless data network by means of the transmission unit.