The main function is to detect the carbon monoxide density of the device.It can real-time monitor the installation equipment area, the concentration of carbon monoxide in the space and in time through the cloud is displayed in the phone APP, let you go out in the outside also can learn to the density of carbon monoxide in the related areas, remote and carbon monoxide concentration once overweight, it will immediately send out alarm, remind users, and push the relevant alarm information sent to the installed APP phone.