Start from the measurement principle, then confirm medium, range, installation and signal requirements.
80 GHz radar, compact radar, silo radar, air-purge radar, hazardous-area radar, high-temperature radar and guided wave radar product families with 4-20 mA, HART, RS-485 and project telemetry options.
Integrated, split, two-wire, compact, low blind-zone, PTFE-faced, explosion-proof, open-channel, external and water/fuel tank ultrasonic level instruments for economical non-contact measurement.
Cable-type, small-diameter, deep-well, wastewater, drinking-water, PTFE anti-corrosion, smart display, flush diaphragm, sanitary and DP level transmitter families for continuous liquid level measurement.
Power-free local indication plus magnetic, glass plate/tube, high-pressure, lined, steam-jacketed, insulated, switch and 4-20 mA transmitter configurations.
Float, cable float, compact/explosion-proof tuning fork, powder fork, vibrating rod, capacitance, conductive and rotary paddle switches.
WELK engineers configure level measurement packages from tank conditions and control-system requirements.
Configurable 80 GHz FMCW radar level meter for storage tanks, process vessels and selected solids with narrow-beam non-contact measurement.
Compact non-contact radar transmitter for water tanks, utility vessels, pump stations and short-to-medium industrial ranges.
Long-range radar level meter for powders, pellets, cement, fly ash and bulk solids storage where dust and uneven surfaces must be reviewed.
80 GHz radar package with purge connection for dusty silos and applications where antenna buildup can weaken the echo.
Radar level meter configured for cement, fly ash, lime and mineral powder silos with dust, filling stream and aiming review.
Non-contact radar level meter selected for acid, alkali, solvent and chemical tanks where exposed materials and vapor conditions matter.
Compact radar sensor package for rivers, reservoirs, canals, drainage wells and outdoor water-level telemetry points.
Radar level package with telemetry options for remote tanks, rivers, drainage wells and unmanned monitoring points.
Non-contact radar package for open-water level and surface-velocity monitoring where fouling or submerged sensors are a concern.
Radar level transmitter option for compatible hazardous liquid or solids applications after area classification and certificate review.
Radar level meter configured with protected antenna, spacer or cooling extension for elevated-temperature process vessels.
Probe-based guided wave radar transmitter for narrow tanks, bypass chambers, low-dielectric liquids and selected interface applications.
Flexible cable guided wave radar for taller tanks and selected bulk solids where a rigid probe is impractical.
Rigid rod guided wave radar for clean liquids, bypass chambers and shorter process vessels with stable probe geometry.
Coaxial guided wave radar option for low-dielectric liquids, small chambers and applications needing a contained signal path.
Integrated non-contact ultrasonic level meter with local display, analog output, relay and RS-485 options for tanks and sumps.
Separated ultrasonic transducer and wall-mounted display/controller for deep pits, pump stations and tanks where tank-top reading is inconvenient.
Loop-powered ultrasonic level transmitter for simple 4-20 mA tank level signals in water, wastewater and compatible chemical applications.
Compact ultrasonic level sensor for small tanks, utility vessels and OEM equipment with analog, digital or switch-output options.
Short-range ultrasonic level sensor for shallow tanks where the highest liquid level is close to the sensor face.
PTFE, PVDF or PP-faced ultrasonic level meter for compatible acid, alkali and chemical storage tanks.
Hazardous-area ultrasonic level meter option for compatible liquid tanks where acoustic measurement conditions remain stable.
Ultrasonic head-level measurement package for flumes, weirs, wastewater channels and industrial discharge flow monitoring.
Externally mounted ultrasonic tank level gauge for selected sealed tanks where no process opening is preferred.
Ultrasonic level meter configuration for water storage, diesel day tanks and selected utility fuel tanks after vapor and hazardous-area review.
Submersible hydrostatic level transmitter for wells, reservoirs, tanks and water projects with cable length and output configured by depth.
Hydrostatic level probe configured for clean water tanks, reservoirs and drinking-water projects where wetted materials and cable sheath matter.
Submersible hydrostatic transmitter configured for sewage pits, wet wells and wastewater tanks with anti-blocking diaphragm review.
Submersible deep-well level transmitter with long cable, IP68 probe and output selected for groundwater or reservoir monitoring.
Hydrostatic level transmitter package with mechanically protected cable option for deep wells, tanks and harsh installation routes.
Small-diameter hydrostatic level transmitter for narrow boreholes, monitoring tubes and restricted-access wells.
Anti-corrosion hydrostatic level probe for seawater, acid, alkali and compatible chemical tanks after material review.
Smart hydrostatic level package with local display, analog output and digital communication options for tank and well monitoring.
Flush diaphragm pressure-level transmitter for viscous liquids, slurry, buildup-prone media and tank-mounted level measurement.
Differential-pressure level transmitter package for closed, pressurized or sealed tanks where density and mounting geometry must be reviewed.
Sanitary flush diaphragm level transmitter for clean process tanks requiring hygienic connection and easy-clean wetted surfaces.
Magnetic level gauge for local indication on pressure vessels up to 16 MPa and 350 C.
Bypass chamber magnetic level gauge for side-side or side-bottom vessel connections.
Top-entry magnetic level gauge for tanks without side nozzles or with top-mounted instrument access.
Magnetic level gauge with PTFE, PP, PVC or lined wetted parts for corrosive liquid tanks.
High-resolution continuous liquid level transmitter for magnetic gauge chambers or direct float-probe installation.
High-accuracy magnetostrictive level gauge for clean liquid storage tanks, fuel tanks and chemical tanks.
Dual-float magnetostrictive transmitter for total level and liquid-liquid interface measurement review.
Packaged magnetic gauge solution with local indication, alarm switches and 4-20 mA transmission.
Engineered magnetic level gauge for pressure vessels, separators and demanding process conditions.
Magnetic level gauge with steam jacket or heat tracing for viscous liquids and temperature-maintained tanks.
Magnetic level gauge with insulation or frost-proof extension for low-temperature and outdoor service.
Continuous magnetic float transmitter with reed-chain or magnetostrictive output for tank level signal transmission.
Direct-reading glass plate or glass tube level gauge for local tank indication where magnetic indication is not required.
Float-operated level switch for clean liquid high-low alarms, pump protection and simple tank control.
Vibrating fork point level switch for liquid overfill, dry-run protection and process interlock duty.
Vibrating rod point level switch for granular and coarse bulk solids in silos and hoppers.
Capacitance point level switch for liquids, slurries, foam, interfaces and selected bulk solids.
RF admittance point level switch for sticky liquids, powders, slurries and buildup-prone applications.
Electromechanical point level switch for dry bulk solids in bins, hoppers and silos.
Electrode level switch for conductive liquids in tanks, sumps and pump-control applications.
Compact non-contact capacitive level sensor for water tanks, plastic containers and OEM liquid detection points.
Mini tuning fork level switch for small tanks, pipes and compact liquid detection points.
Hazardous-area tuning fork level switch for liquid overfill, dry-run and safety interlock duties.
Large-fork vibration level switch for powders, granules and low-density bulk solids.
Suspended cable float switch for sump pumps, water tanks and simple liquid level control.
Multi-point 3D silo scanner package for bulk solids inventory, uneven material surfaces and volume estimation.
Panel or wall-mounted display/controller package for level transmitters, alarms and pump control.
Side-entry float switch for compact tank high/low alarms and OEM liquid-level interlocks.
Externally mounted ultrasonic level switch for sealed tanks where a non-contact high/low alarm is required.
OEM/ODM level instrument package covering range, connection, output, label and documentation requirements.
A WELK engineer will recommend a practical series.
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