Thanks to equipping the new optical camera and a light source in the sensor high accuracy reaches in case of recognition of the smallest particles in air even in initial phase of the fire. Thus the sensor EVC-PY-DA is ideal for application almost in all industrial facilities and buildings. The integrated module of automatic adjustment of sensitivity prolongs lifetime of the smoke detector and reduces the number of false alarms. The rugged housing design provides to the device almost absolute protection against negative impacts of the environment and pollution, and also high-frequency noises, which, if necessary, to be registered in time by an intelligent loop tracking of the device and are displayed by means of the led indicator.