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The ambient air quality in the live stock farm has an effect heath of animal. Therefore, we have developed a device for monitoring air quality of environment. In this work, wireless electronic nose has developed by deploying commercial gas sensor arrays, microcontrollers and ZigBee wireless network. They system is applied for environment classification in various laboratories including biological, chemical and clean rooms. Air data measured by multi-sensor array are delivered via ZigBee network to a database station where PCA as linear explorative technique analysis is used to obtain odor dispersion and environment prediction. The air environment of various laboratories has been successfully classified by the developed system. Thus, the wireless electronic nose approach is potential for automatic environment monitoring with many industrial applications including livestock farm environmental control.