Aircraft gas turbine oil tank with indication of filling level

Apparatus for detecting the level of particulate solids in a shu

Automatic dishwasher condition indicator

Battery cap indicator

Bin fill indicator

Combination hazardous liquid and water sensor

Container with a device for indicating a total quantity of...

Device for detection of imminent gas depletion of a liquified ga

Drain alert device

Fill gate for grain bins and the like

Fill level indicator for agricultural material bin

Fluid level sensing method and apparatus

Fuel level indicator for a portable fuel tank

Fuel tank level indicator

Grain gage

Gutter system indicator for indicating a clogged or...

Indicator cap

Indicator cap

Liquid level gauging apparatus

Liquid level indicating device