DI-9105E is an intelligent loop powered addressable reflec-tive beam detector, with excellent built-in microprocessor,the detector can carry out system adjustment, drift compen-sation of ambient data, and judgment of fire and faultthrough fixed algorithm. The detector has an integral visiblelaser pointer and 2 bits digital tube. It is easy to install andalign with the reflector, convenient for commissioning withindications of 2 bits digital tube displaying received lightintensity. The sensitivity of the detector can be set throughhandheld programmer in field, suitable for various applica-tions including large storage zones, shopping malls, fitnesscenters, gyms, exhibition halls, hotel lobbies and areas withcomplex ceilings.