From a water reservoir to an agitated chemical reactor or a dusty cement silo, we supply and configure contact and non-contact level instruments matched to the medium, the vessel and the process conditions.
Level is the measurement most plants depend on every hour: it protects pumps from running dry, stops tanks from overfilling, and tells operations and finance how much product is actually on site.
We cover basic point-level detection, continuous level, interface and volume measurement in tanks, silos, sumps, wells and movable containers, for liquids, pastes, bulk solids and liquefied gases.
Typical applications
Where it is used
7 options. We recommend the one that suits your application, not the one that happens to be in stock.
A tightly focused radar beam measures from above without touching the product. It ignores vapour, temperature swings and build-up, and fits narrow tanks, agitated vessels and extreme dust.
Best for
Liquids and bulk solids, agitated vessels, silos
Microwave pulses travel down a rod or cable probe and reflect at the product surface. Largely maintenance-free, and able to see the interface between two liquids such as oil and water, or through foam.
Best for
All kinds of liquids, interface, small process vessels
A cost-effective non-contact measurement for liquids and bulk solids. A proven choice for open channels, sumps, lift stations and chemical storage tanks.
Best for
Water, wastewater, chemical tanks, open channel flow
A submersible IP68 pressure transmitter infers level from the weight of the liquid column above it. The simple, robust answer for deep wells, boreholes and reservoirs.
Best for
Deep wells, reservoirs, ship tanks
A universal point-level switch for practically all liquids. Used for overfill prevention, pump dry-run protection and high/low alarms, with no calibration to the medium.
Best for
Overfill and dry-run protection
The dependable workhorse of pump control in wastewater pumping stations, groundwater and drainage pumping. Simple to install and easy to replace.
Best for
Sumps, lift stations, drainage
A bypass-mounted visual indicator that keeps working without power. Built for high temperature and pressure, full vacuum and low specific gravity liquids.
Best for
Boilers, separators, high-pressure vessels
Liquid, slurry or solid? Conductive, corrosive, foaming, sticky or dusty? Dielectric constant and density decide which principles will work.
Height, nozzle size, agitators, heating coils and internal structures all affect beam path and probe choice.
Temperature, pressure, vapour, vacuum and hazardous-area classification narrow the selection.
A high alarm, a continuous level, an oil-water interface or a volume for inventory — each has a different best answer.
It depends on the medium, the vessel and the process conditions. Non-contact radar suits most liquids and bulk solids, including agitated or dusty vessels. Guided wave radar is preferred for interface measurement, foam and small vessels. Hydrostatic transmitters suit deep wells and reservoirs, and ultrasonic sensors are a cost-effective choice for water, wastewater and simple chemical tanks.
Radar uses microwaves, which are largely unaffected by vapour, temperature changes, pressure or dust. Ultrasonic uses sound, so its accuracy can be affected by temperature gradients, heavy vapour and foam. Ultrasonic usually costs less; radar is more reliable in difficult conditions.
Yes. A guided wave radar transmitter detects both the upper liquid surface and the interface below it, so one instrument can report total level and the oil-water interface.
With a submersible hydrostatic level transmitter. It is lowered into the liquid on its cable and infers level from the pressure of the liquid column above it, typically with a 4–20 mA output.
