Asset tracking device for determining whether a transport by a predetermined type of transportation means has started, the device comprising an acceleration sensor for measuring an acceleration experienced by the asset tracking device, a controller configured for analyzing data measured by the acceleration sensor , and a transmitter, wherein the controller is configured for determining from the data measured by the acceleration sensor whether the asset tracking device is transported by a predetermined type of transportation means, wherein the controller is configured for causing the transmitter to transmit a signal that a transport of the asset tracking device with the predetermined type of transportation means has started, when the controller determined from the data measured by the acceleration sensor that the asset tracking device is transported by the predetermined type of transportation means, wherein the acceleration sensor is configured for carrying out a 3-axes acceleration sensing, and wherein the controller is configured solely on the basis of 3-axes sensing data of the acceleration sensor to determine whether the asset tracking device is transported by the predetermined type of transportation means, wherein the acceleration sensor or the controller is configured for counting a change of sign of the sensed acceleration along all 3 axes during a predetermined amount of time, and that the controller is configured for determining from the counted changes of sign of the sensed acceleration along all 3 axes measured by the acceleration sensor whether the asset tracking device is transported by the predetermined type of transportation means, and wherein the asset tracking device is configured for being attached to an asset, wherein the asset is a container, a load carrier, or a trolley. an acceleration sensor for measuring an acceleration experienced by the asset tracking device, a controller configured for analyzing data measured by the acceleration sensor , and a transmitter, wherein the controller is configured for determining from the data measured by the acceleration sensor whether the asset tracking device is transported by a predetermined type of transportation means, wherein the controller is configured for causing the transmitter to transmit a signal that a transport of the asset tracking device with the predetermined type of transportation means has started, when the controller determined from the data measured by the acceleration sensor that the asset tracking device is transported by the predetermined type of transportation means, wherein the acceleration sensor is configured for carrying out a 3-axes acceleration sensing, and wherein the controller is configured solely on the basis of 3-axes sensing data of the acceleration sensor to determine whether the asset tracking device is transported by the predetermined type of transportation means, wherein the acceleration sensor or the controller is configured for counting a change of sign of the sensed acceleration along all 3 axes during a predetermined amount of time, and that the controller is configured for determining from the counted changes of sign of the sensed acceleration along all 3 axes measured by the acceleration sensor whether the asset tracking device is transported by the predetermined type of transportation means, and wherein the asset tracking device is configured for being attached to an asset, wherein the asset is a container, a load carrier, or a trolley. <EOS>