Sensor for monitoring spatial distribution of carbon dioxide

The invention belongs to the technical field of environmental monitoring, and discloses a sensor for monitoring spatial distribution of carbon dioxide, which comprises a shell, an alarm mechanism is arranged on the outer wall of the top end of the shell, the alarm mechanism comprises a fixed block, and a double-shaft motor is fixedly connected to the inner wall of the fixed block. And an output shaft of the double-shaft motor is fixedly connected with a rotating block, the outer wall of the rotating block is fixedly connected with a connecting block, and the inner wall of the connecting block is elastically connected with a rotating shaft through a volute spiral spring. Through cooperation of the shell, the double-shaft motor and other structures, when the shell detects that the concentration of carbon dioxide in the space is too high or too low, the output shaft of the double-shaft motor can be driven by the circuit system to rotate clockwise or anticlockwise, a knocking block is made to make contact with th