Overfill prevention is a safety device which prevents the overfilling of tanks and process containers. It is an indispensable element for environmental protection whenever working with liquids which are potential water pollutants.

The overfill prevention LS 300/500 for corrosive fluids, non-flammable and flammable, of Hazard Class AI consists of the level sensor LS 300 and the transducer LS 500. — Also with AK5 (fail-safe)