Organic matter monitoring device

The utility model discloses an organic matter monitoring device. The main body module comprises a floating plate, a base which fixes the top end of the floating plate and penetrates through the floating plate, propellers which are symmetrically mounted at the bottom end of the floating plate, a reel which is rotatably mounted on the inner wall of the base, and a first motor which is mounted on the inner wall of the base and is connected with the reel; the angle sensor is installed on the inner wall of the base and connected with the other end of the reel, the reel is sleeved with the connecting line, the connecting line extends out of the base, the floating plate is used for installing the base and keeping the base stably floating on the water surface, the base is used for installing other assemblies, and the propeller is used for pushing the floating plate to move so as to move the base. The reel is rotationally mounted on the inner wall of the base and used for mounting the connecting line, the connecting l