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.

Use this gauge glass with heavy duty level indicators.

Detect sludge in your container; an alarm sounds when the indicator comes into contact with sludge.

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

Use these gaskets with heavy duty level indicators to seal the glass.

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

Often used in kilns and other heating equipment, these sights have a quartz window that can withstand temperatures up to 1600° F. They're also known as peep sights.

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.

Designed with quick-clamp (KF) connections, these sights connect to a port on a high-vacuum chamber, so you can monitor what's happening inside.

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.

These gauges have a unique case design that eliminates the air bubble on the dial face, which can distort readings. They have a liquid-filled dial that reduces needle flutter for precise readings in high-vibration applications.

Unlike other gauges that have multiple moving parts that can shake loose, these have only one internal part. They are the most shock-resistant gauges we offer.

The small dial on these gauges allows for installation in tight spaces.

A digital display allows for easy reading of measurements.

Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes.

Keep tabs on liquid levels in pump and tank applications with these gauges—a dual scale displays pressure in feet of H₂O and psi.

These gauges have a unique case design that eliminates the air bubble on the dial face, which can distort readings.

These gauges can withstand both extremely cold and extremely hot temperatures.

Gauges have an accuracy of ± 2%.

These gauges have a liquid-filled dial that reduces needle flutter in high-vibration applications reaching 2,000 psi.

Use in low-pressure applications up to 160 psi.

A liquid-filled dial reduces needle flutter in high-vibration food-processing applications.

Gauges are UL 393 listed for use with fire-protection service equipment.

These gauges are 3-A certified for sanitary design in dairy and other food processing applications.

Gauges have an accuracy of ±0.25%.

All-stainless steel construction makes these gauges suitable for testing and calibrating in corrosive environments.

These gauges have a glycerin-filled dial to reduce needle flutter for precise readings in high-vibration applications.

Equipped with a flowmeter/totalizer, this dispenser displays both the flow rate and the cumulative flow volume of the oil dispensed.

Add faucets to oil dispensing stations for increased utility.

Take precise depth measurements in small holes and slots.

These gauges come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Measure depth in dusty or wet environments--these gauges are rated IP67 for protection from dust and temporary water submersion.

These gauges come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Check measurements at a glance.

Built to resist corrosion and last in harsh environments, these vertical rulers are iron with a porcelain-enamel finish. Mount them to walls and tanks.

Connect continuous segments to create a ruler up to 10 ft. long.

Attach a plumb bob (sold separately) to the rope’s hook and lower it into your tank to take a measurement.