Linear smoke detectors are a widely used solution for fire detection systems in buildings with very large areas such as warehouses, factories, aircraft hangars, and similar facilities. Trans‑reflective beam detection, which requires wiring on only one side of the protected area, is indeed a highly economical solution. However, this technique has sometimes proven to be unreliable and difficult to maintain. Inim addresses these limitations with a motorized optical assembly featuring automatic self‑alignment and a user‑friendly control unit.