Strong, safe and reliable – rotating paddle devices of the MAIHAK type have been proven for over 70 years. The filling level indicator signals full/demand/empty bulk material in large storage silos, as well as in small containers. In downspouts and conveyors it promptly signals backlog in the product flow. It has an alternating voltage motor: if the blade is stopped the motor automatically switches off, therefore consumes no energy and is not loaded during standstill. The level switch measures various fill materials such as granulates, feed, spices or powder.