Analyses of energy distribution of monochromatic light crossing through pollinated area were executed. On the basis of models of measure positions with cuvette as well as flow chamber the possibility of scattering measurement under definite angles was studied and on this basis a dustmeter model was built. In the dustmeter the measure detectors were disposed along the edge of optical element so that it was possible to measure the intensity of scattered light on dust particles of definite granulosis.