Atex supplies is the #1 manufactures & dealer of industrial products and Overfill prevention device for storage tanks. The “High Level Alarms” provide audible and visible alarms for monitoring levels of liquids. It can be directly mounted on a fuel tank to provide a warning of a near full tank level. Optionally the alarm indicator may be remote mounted from the sensor. The powerful audible alarm can be heard over the sound of the pumping equipment.