The Rotary Paddle Switch is designed to signal the presence or absence of bulk materials in silos and hoppers, as well as for blockage detection in conveyor chutes. Perfect for dry bulk solids, including powders, chips and granules, the unit detects the product when the rotation of the paddles inside the container is impeded. A control signal is detected and after approximately half a second the motor circuit switches off. All active parts become stationary resulting in long motor life and no paddle wear. Available in either side- or top-mounted models, the Rotary Paddle Switch has proven to be one of the most reliable signal point level indicators on the market, according to the manufacturer.