Profile: BlueLevel Technologies, Inc. is a manufacturer & supplier of level measurement sensors, bin level indicators, continuous level inventory monitoring systems, and accessory items. We also offer bin aerator flow-aids, and proximity sensors & switches. Rotary paddle bin level indicator is an industry standard level detection sensor for powders & bulk solids. These rugged & reliable rotary paddle bin level indicators are the most universal sensor for detecting the presence or absence of bulk solids ranging in density from 5 to over 100 pounds per cubic foot (80 to 1600 kilograms per cubic meter). Model RH/RHX units are provided with fail-safe relay output, high intensity LEDs for local indication (RH only), an industry standard 1-1/4" process connection, two conduit entrances, and food grade materials of construction. All units are available with folding or fixed paddles for easy installation from outside the bin, and can be top or side mounted.