Abstract: Apparatus for sensing movement of a fishing line when a fish takes the bait on the line is described and includes a casing fittable to bank rod at a desired angle and having an opening for receiving a fishing rod and a slot which receives the fishing line. A stylus part of a sensor extends into the slot and the slot walls may be shaped to guide the line into engagement with the stylus. The stylus passes through a water resistant/impermeable sheath into the casing in which it is coupled to a sensing device operable to generate or modulate a voltage when it is moved or vibrated. An electronic circuit is provided in the casing to generate a audible and visible indication of line movement and includes a tone sounder carried in and LEDs mounted on the casing.The sensing device may comprise a piezo-electric device or a vibration sensitive switch operable to generate a voltage when vibrated, or a (infra red) light source/sensor arrangement including a light modulating element attached to the stylus.