The manually aligned linear optical smoke detector is a compact and reliable solution for the protection of rooms with complex heights and geometries. Thanks to the integrated laser, it enables precise beam alignment to the reflector, simplifying installation and reducing commissioning time. It covers a distance of 10 to 100 meters, depending on the number of reflectors used, and can be easily integrated into existing installations via EU311 module on Loop Inim. Power can be supplied directly from the loop (up to 5 detectors per line, to be verified with Loop calculation software), or via separate power supply.