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.

The nylon body and window make these indicators shatter resistant.

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

Monitor liquid level in applications that have vibration, high pressures, and high temperatures. These indicators are also known as armored level gauges.

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

Machined from one piece of stain- and impact-resistant plastic.

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

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

Weld these sights to single-wall tanks.

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.

Install these gauges through the top of your tank to monitor diesel, 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.