Abstract: A signaling device is provided for use on a fishing rod. The device includes an adapter for connection to the tip of a fishing rod in place of the line guide thereof and a substantially straight balance beam pivotally mounted on the adapter. The balance beam includes a line guide on the outer end thereof and a pair of wedging surfaces on the inner end adapted retainably to receive one or more shot weights. The shot weights provide a means of predeterminably adjusting the balance moment for normally retaining the balance beam in generally parallel relationship to the fishing rod against the combined line loading of hook, weight, and pull by a biting fish so that a predetermined pull by the fish will pivot the line guide end of the balance beam downward from parallel alignment with the fishing rod thereby to signal a bite.