-
Sight Windows
Sight WindowsA sight window is a window into a tank or vessel for visual inspection of the process application...
Learn More -
Liquid Level GaugesLiquid Level Gauges
An instrument indicating the presence or the quantity of liquid in a tank, vessel, reservoir, or boiler application...
Learn More -
Sight Flow Indicators
Sight Flow IndicatorsA sight flow indicator is a window into the piping system to observe the flow stream, typically of liquid, through the glass window...
Learn More
Sight Windows
Liquid Level GaugesManufacturer of Flow and Level Control
Products for Liquid and Steam Applications
— New! —
Shop our Catalog Online
Browse the entire catalog to explore all of our products.
Browse our Full Online Availability
View the entire catalog, including items that are and are not available for purchase online.
Look for the “Select Image to Order” Tag
As you browse, look for this tag to find items available for purchase online.
See Online Availability
Items with the tag include availability, so you’ll know what’s in stock and ready to ship.
EFI has joined Ernst Instruments!
Ernst Instruments designs and manufactures a variety of flow control products, including:
- Sight Flow Indicators
- Sight Glass
- Flow Meters
- Totalizers
- Tubular Gauges
- Liquid Level Gauges
- Gauge Valves
- Sight Windows
- Flow Switches
- Level Switches
- Sanitary Tri-Clamp Products
- Glass & Gaskets
APPLICATION
SPECIALISTS
AVAILABLE
FOR QUESTIONS