The present invention provides a reel for fishing tackle having a sensor unit mounted on a reel body. The present invention provides a reel 1 for fishing tackle, comprising: a reel body 3 having a handle 2 rotatable about a handle axis O1； and a sensor unit 6 installed on the reel body； the sensor unit is provided with: The unit body 92 is arranged coaxially with the axis of the handle； the behavior sensors 90, 91, etc. are arranged in the unit body to detect the behavior of the reel body in use； and the communication unit 93 is arranged in the unit body, Send behavior data based on the behavior detected by the behavior sensor to the outside.本發明提供一種具備安裝於捲線器本體之感測器單元之釣具用捲線器。本發明提供一種釣具用捲線器1，其具備：捲線器本體3，其具有可繞手柄軸線O1旋轉之手柄2；及感測器單元6，其安裝於捲線器本體；感測器單元具備：單元本體92，其與手柄軸線同軸地配置；行為感測器90、91，其等配置於單元本體內，檢測捲線器本體之使用時之行為；及通信部93，其配置於單元本體內，將基於由行為感測器檢測之行為之行為資料發送至外部。
