A grain cart is provided having a storage hopper for holding crop material,load cellspositioned on the grain cart to measure a weight of crop material in the graincart and anindicator connected to the load cells. The indicator can be operative toreceive signalsfrom the load cells indicating the weight measured by the load cells and tosend anelectrical signal on an output connection in response to a predeterminedweight of cropmaterial being removed from the grain cart. The output connection can beelectricallyconnected to a close gate conductor wire that is operatively connected to thegateactuator, so an electrical signal generated by the indicator on the outputconnection of theindicator causes the gate actuator to close gates in the storage hopperstopping cropmaterial from being discharged from the storage hopper.
