An easy to use signaling apparatus which can be used during an entire year for warm and cold weather fishing to signal a fisherman that a fish has nibbled, struck or hooked a bait. The signaling apparatus can be used with a variety of fishing rods of different diameters. The signaling apparatus is mounted in surrounding relationship to a fishing rod and includes an adjustment for triggering an LED and/or a buzzer at higher or lower tensile forces in a fishing line caused by a fish nibbling, striking or hooking a line. The signaling apparatus has a high resistance to corrosion, is sensitive to low levels of a tensile force in a fishing line and does not affect the castability of a rod and reel.