DC-9105E is a conventional reflective beam detector,powered by 24V. with excellent built-in microprocessor, thedetector can carry out system adjustment, drift compensa-tion of ambient data, and judgment of fire and fault throughfixed algorithm. The detector has an integral visible laserpointer and 2 bits digital tube. It is easy to install and alignwith 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.