Rotary paddle level switch is on-site control equipment which is used to detect the level of solid materials( powder, particles ), its unique sealing design, super overload protection ability and simple installation method make it widely used in feed, food, pharmaceutical, chemical, plastics, construction, fertilizer and other industries. 

The blade of rotary paddle level switch is connected with the clutch by driving shaft, the motor will keep working before the blade touching the materials, once the blade contacts with the materials, the motor power will be shut off and stops moving, at the same time, the device will output a signal to indicate that the material level has reached the height configured.