Monitor hydraulic fluid or oil level in pressurized applications.

These flexible indicators bend to follow the contours of a tank.

These indicators mount from the outside of your tank.

Simultaneously monitor hydraulic fluid or oil level and temperature in gear boxes, crank cases, and other reservoirs.

Avoid overfilling—these indicators pop up when your tank is almost full.

Combine a pair of valves with a gauge glass and four guard rods to build a complete level indicator.

The window and body are made from a single piece of plastic, making these sights more shatter resistant than sights with a glass window.

View tank contents from multiple angles through the plastic domed window.

Continuously monitor oil quality through the clear plastic reservoir, and use the attached drain valve to remove water accumulation.

Fasten the extended flange to tank walls.

Mount these sights from the inside of your tank and secure with a lock nut.

Add a window to your high-vacuum system. With a pane of glass sealed inside a high-vacuum CF flange, these sights bolt onto vacuum chambers, tee fittings, and manifolds.

Mount these gauges on the flat end of a horizontal, cylindrical tank to monitor diesel fuel, fuel oil, or gasoline level.

For precise measurement of water, hydraulic fluid, or diesel fuel level, this gauge provides level readings down to 1/8".

Also known as level loggers, level sensors, and pressure transducers, these transmitters sit at the bottom of your tank in applications that make traditional mounting difficult.