Empty and fill your tank with a single device—this dual-level switch includes two float switches that actuate at different levels. Mount through a threaded connection at the top of your tank.

Mount these switches from outside the tank through a threaded connection at the top or bottom of your tank.

Mount these switches through an unthreaded hole in your tank wall and secure with a nut from outside the tank.

Detect water level with infrared light to avoid false switch activation caused by vibration in your tank.

This switch mounts to the outside of your tank and detects chemical level through plastic tank walls by measuring the capacitance between the switch and tank contents; it cannot be used with metal tanks.

Detect chemical level with infrared light to avoid false switch activation caused by vibration in your tank.

Use the included bracket to mount these switches to the inside of your tank.

Install these switches into a threaded connection in your tank wall from outside the tank.

Designed for use in areas where flammable substances are present, these switches are CSA certified for hazardous locations.

Empty and fill your tank with a single device—these dual-level switches include two float switches that actuate at different levels. Mount through a threaded connection at the top of your tank.

Mount these switches through an unthreaded hole in your tank wall and secure with a nut from outside the tank.

For visual monitoring and easy access, these switches are housed in a clear acrylic reservoir that mounts to the outside of your tank.

Mount this switch through the top of your tank.

Install these switches through a tank wall.

Mount these switches through an unthreaded hole in your tank wall and secure with a nut from inside the tank.

Cut the probes on these switches to fit the size of your tank.

Short probes are built into the tip of these switches.

Detect when oil rises on water, foam forms on beer, and tanks empty, triggering pumps and valves in food and sanitary lines. These switches are 3-A and European Hygienic Engineering and Design Group (EHEDG) certified since they’re easy to keep clean.

Control water levels in spaces where a rod and lever won’t fit; these float valves have an internal float and connect to your pipe.

With a durable bronze body, these float valves can be used with water and hydraulic fluid.

Smaller than other float valves, these are sized for containers with limited space.

Able to withstand higher temperatures than PVC float valves, these valves have a temperature range of 35° to 175° F.

Commonly used in ice-making machines, these valves have floats that rest inside a clear plastic reservoir.

Made of stainless steel, these float valves have excellent corrosion resistance even when exposed to chemicals.

Combine these float valve bodies with floats and rods (not included) to create float valves that meet exact specifications.

Bend these flexible indicators around the contours of your hydraulic fluid, oil, or water tank. Because their plastic resists shattering, they don’t need a protective shield like other liquid-level indicators, so you can check your tank’s level from any angle.

The nylon body and window make these indicators shatter resistant.

Made with clear, shatter-resistant plastic, these indicators don't require a shield to protect them like other oil-level indicators, so you can check your hydraulic fluid or oil level from any angle.

Shut-off valves stop flow so you can clean and replace gauge glass without removing these indicators from your equipment.

Replace existing gauge glass or combine with valves and guard rods to build your own level indicator.

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

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

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

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

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.

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

With a stainless steel float and float rod, these gauges resist corroding from chemicals.

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

These sights have 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.

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.

Fasten the extended flange to tank walls.

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 glass sealed inside a high-vacuum CF flange, these sights bolt onto vacuum chambers, tee fittings, and manifolds.

An alarm and a red light alert you when water levels rise too high.

Activate your pump in dirty water that contains sludge and sewage.

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.

Measure volume in gallons without calculations.

Fold these vertical rulers for convenient storage and transport.

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

Reach deep into small holes and slots for precise depth measurements.

Connectable extension rods allow you to measure depths.

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

Measure depths up to 8" using connectable extension rods.

All gauges have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the gauge is turned off.

When water contacts the sensor, it triggers a buzzer to alert personnel to a leak or overflow hazard. Frequently used to monitor sinks, pipe lines, tubs, and sump pumps.