Low-power-consumption NB transmission sensor

The invention discloses a low-power-consumption NB transmission sensor comprising a machine body, an input end fixedly arranged at the upper end of the machine body and an output end fixedly arrangedat the lower end of the machine body, a first sliding groove is formed in the machine body, the first sliding groove is annularly formed, a bearing is fixedly arranged in the center of the outer surface of the machine body, and a rotating rod is rotatably arranged on the bearing; a first sliding block is fixedly arranged at the end, away from the bearing, of the rotating rod, the first sliding block is arranged in the first sliding groove in a sliding mode, a sliding ring is further fixedly arranged on the outer side wall of the machine body, a corresponding sliding piece is arranged on the side wall of the rotating rod, and the sliding piece and the sliding ring are arranged in a smooth and close fit mode; the upper wall of the rotating rod is also fixedly provided with a plurality of fixed blocks. According to the low-power-consumption NB transmission sensor, the self-cleaning process of the surface of the sensor is achieved, manual wiping is not needed, the normal heat dissipation process of the sensor is protected, and heat accumulation is prevented.