Abstract
In the paper, the toxic gases detection system in the air environment has been developed. It monitors in real time a concentration of toxic gases and vapors in air. When toxic gases are absence or their concentration is permissible, the system is in the normal mode (monitoring mode). When the maximum permissible norm of toxic gases is exceeded, the system changes its state into alarm mode. In the alarm mode, it switch on the buzzer, the red LED, outputs an alarm message to the LCD module and PC via the serial interface, and also sends SMS to the mobile device via a GSM module.
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