Monitor hydraulic fluid or oil level in pressurized applications.

The nylon body and window make these indicators shatter resistant.

Mount these indicators on the outside of tanks in food, pharmaceutical, and other sanitary environments to monitor their liquid levels.

Mount these indicators from the inside of your tank through unthreaded holes.

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

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

Use this gauge glass with heavy duty level indicators.

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

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

Install these gauges through the top of your tank to monitor diesel, fuel oil, or gasoline level.

Measure liquid level with sound waves—these transmitters don’t come into contact with the liquid so you don't have to worry about fluid compatibility or contamination.

These sights have a glass window.

Easily view liquid movement and level changes from a distance—these sights have an indicator ball inside the glass window.

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

With a thick glass window fused to a metal body, these sights resist cracking at high pressures.

Monitor food, brewery, chemical, pharmaceutical, and biotech processing lines with these sights that attach to quick-clamp fittings for fast installation and easy removal for cleaning.

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

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