Introduction. The relevance of work is due to the need for constructive transformation of the AАEE-7 multi-block measuring system into a mono-block one. This is required for microclimate research in livestock premises, according to the methodological provisions. The work on the development of a laboratory sample of a mono-block analyzer is being carried out in Ukraine for the first time. The purpose of the research was to implement a method of continuous automatic recording of measurements of the microclimate of livestock premises. In addition, it was supposed to reduce the cost and reduce the number of technical means of measurement. It was also supposed to simplify the process of setting up measurements to increase the productivity of scientists and technologists. Research methods. Analytical, mathematical, physical, economic research methods are applied. In addition, the methods of designing and programming electronic devices are applied. On the basis of previous developments and materials of scientific works of periodical publications, the advantages of the measuring system "Analyzer of air environment electronic mono-block" (AАEE-M) are substantiated. A laboratory sample of the device with software was made (developer Cherkasy Research Station of Bioresources NAAS). The algorithm of the multiparameter method of continuous automatic registration and assessment of the microclimate of premises using AАEE-M has been developed. Research results. It was determined that the devices of the main Ukrainian manufacturers PJSC "Ukranalit" and LLC "Complex Automated Systems" and foreign companies "Delta Ohm" and "Luma Sense Technologies A/S" do not fully meet the requirements of microclimate monitoring, according to the existing methodology. The main innovative advantage of AАEE-M is the possibility of automatic registration of daily fluctuations of at least ten parameters of the microclimate, with a time interval of 6 minutes. This applies, in particular, to small particles of suspended dust of PM1, PM2.5 and PM10 fractions and low volumetric concentrations of polluting gases CO2, NH3, H2S, CH4. The technical advantage of the measuring system is based on the fact that it is characterized by a 30 % lower mass compared to the Ecolab prototype. In addition, it has 9 times longer battery life, wireless communication, and the possibility of remote transmission of measurement results. Conclusions. For the operation of the AАEE-M measuring system, a methodology for assessing microclimate parameters using the method of continuous automatic registration has been developed. The economic advantage of AАEE-M is that it is 4.4 times cheaper compared to the prototype. Also, it is cheaper by 22.9 %, compared to the previous multi-block modification of the measuring system. Key words: measuring system, parametric, evaluation, microclimate, livestock premises, method of determination.