Laser type gas alarm with self-detection function

The utility model relates to the technical field of gas detection and alarm, in particular to a laser type gas alarm with a self-detection function, which comprises a shell, a laser acquisition mechanism and an alarm mechanism, the laser acquisition mechanism is arranged in the shell and is used for detecting the concentration of toxic gas at the detection channel, and the alarm mechanism is arranged on the shell and is used for comparing concentration information acquired by the acquisition mechanism and giving an alarm when the concentration exceeds a threshold value; the shell is provided with a self-checking mechanism, the self-checking mechanism comprises a transparent container, the transparent container is arranged on the shell and stores detection gas with set concentration, and during self-checking, the transparent container is placed in the detection channel to simulate gas leakage. The application has the effect of facilitating the detection of the alarm. 本申请涉及气体检测报警的技术领域，尤其是涉及一种具有自检测功能的激光型气体报警器，其包