Online material level detection device based on Internet of Things

The utility model discloses an on-line material level detection device based on Internet of Things, which comprises a main body, a mounting rod is fixed inside one side of the main body, a rotating sleeve is movably mounted outside one end of the mounting rod, a wireless transmitter is mounted at the top end of the rotating sleeve through a threaded hole, and a connecting rod is arranged at the other end of the mounting rod. A circuit board is fixed on the main body through a support. The mounting rod is fixed inside the main body, the rotating sleeve is movably mounted outside the mounting rod, the wireless transmitter is mounted at the top of the rotating sleeve, and the connecting rod is connected with the first controller through the wire, so that the wireless transmitter transmits received signals to the connecting rod through the mounting rod and the rotating sleeve; and the connecting rod transmits data to the first controller through a wire, so that the problems of high cost, inflexibility, easiness i