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Level Measurement

Continuous and point level measurement for liquids and solids

Whether you need continuous level and interface measurement or reliable point level detection, SEMAC Automation delivers instrumentation for liquids, pastes, granulates, powders, solids and bulk goods — from standard tanks to the most demanding applications, hazardous areas and Functional Safety (SIL) loops.

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What we offer

  • Continuous level & interface transmitters
  • Point level switches
  • Level indicators
  • Contact and non-contact technologies
  • Hazardous-area (Ex) versions
  • Functional Safety (SIL) rated devices

Key benefits

Any medium

Liquids, pastes, granulates, powders, solids and bulk goods.

Contact or non-contact

Technologies matched to the application — radar, ultrasonic, hydrostatic and more.

Functional Safety

SIL-rated options for safety-critical level and overfill protection.

Standard to demanding

From everyday tanks to aggressive media and classified hazardous areas.

Level measurement technologies

Hydrostatic transmitters, radar, ultrasonic, vibrating switches, floats and displacers, conductive and HF switches, rotating paddles: each level technology solves a different problem. See how each one works, where it fits and how they compare.

All technologies
Hydrostatic level transmittersA pressure sensor at the bottom of the tank or well reads the weight of the liquid above it and turns it into a continuous level signal. Read the article Radar level: non-contact and guided waveMicrowaves travel to the surface and back — through the air from an antenna, or along a probe — and the time gives the level of liquids and solids. Read the article Ultrasonic level transmittersA sensor above the surface sends sound pulses and times their echo — continuous level with no contact, for tanks, wells, sumps and open channels. Read the article Vibrating level switchesA fork or rod vibrates at its resonant frequency; when liquid or powder covers it, the vibration changes and the switch changes over. Read the article Floats and displacersBuoyancy at work: a float switches a contact at the liquid surface, and a displacer turns the change in its apparent weight into a level or interface signal. Read the article Conductive and HF level switchesElectronic probes with no moving parts: a conductive switch senses current through a conductive liquid, an HF switch the change in a high-frequency field. Read the article Rotating paddle level switchesA slowly turning paddle stops when the bulk solid covers it, and the switch signals the level — a simple point-level switch for silos and hoppers. How it works

Products in this category

21 products
Delta Mobrey Analogue Level Probes - DSGE Series
DELTA MOBREYAnalogue Level Probes - DSGE SeriesHydrostatic level measurement probes for tanks, wells and piezometers with 4–20 mA output. View product
DELTA MOBREYHorizontal Magnetic Float SwitchesRobust horizontal magnetic float switches engineered for dependable level detection in demanding industrial applications. View product
Delta Mobrey Hydratect 2462 Steam and Water Detection System
DELTA MOBREYHydratect 2462 Steam and Water Detection SystemReliable detection system for identifying water and steam contamination in boiler circuits and condensate systems. View product
Delta Mobrey Mobrey MLT100 Displacer Level Transmitter Delta Mobrey
DELTA MOBREYMobrey MLT100 Displacer Level Transmitter Delta MobreyAdvanced HART displacer level transmitter combining proven buoyancy measurement with robust, low-maintenance electronics. View product
DELTA MOBREYRotatory Paddle Level SwitchVersatile rotating paddle level switch for high and low limit detection across varying material densities. View product
Delta Mobrey Vibrating Fork Level Switch - DMS & DMT
DELTA MOBREYVibrating Fork Level Switch - DMS & DMTCompact vibrating fork level switch for reliable point-level detection in solids and liquids. View product
Delta Mobrey VLS Vibrating Rod Solids Level Switch
DELTA MOBREYVLS Vibrating Rod Solids Level SwitchReliable single-point level detection for bulk solids with vibrating rod technology and external LED status indication. View product
Klay Instruments 8000-SAN
KLAY INSTRUMENTS8000-SANHygienic level transmitter with flush diaphragm, 0.04–80 bar range, ±0.2% accuracy, and field-adjustable calibration. View product
Klay Instruments AquaCer
KLAY INSTRUMENTSAquaCerCompact ceramic level transmitter for water, wastewater and sludge measurement with IP68 protection. View product
Klay Instruments AquaCer-I
KLAY INSTRUMENTSAquaCer-IPrecision ceramic level transmitter (0.1–5 bar) with remote configurability and IP68 protection for demanding process environments. View product
Klay Instruments FLX
KLAY INSTRUMENTSFLXConductive level switch for liquids up to 2m insertion, -30°C to +100°C, IP67 stainless steel construction. View product
Klay Instruments Hydrobar
KLAY INSTRUMENTSHydrobarPrecise hydrostatic level transmitter for water, wastewater, and sludge measurement with 0.2% accuracy and multiple connection options. View product
KLAY INSTRUMENTSHydrobar-IPrecision pressure transmitter with HART protocol adjustment and full ATEX/IECEx compliance for hazardous environments. View product
KLAY INSTRUMENTSHydrobar-SMicroprocessor-based level transmitter with 0.04–4 bar range, HART-compatible 4–20 mA output, and marine/explosion-safe certifications. View product
Klay Instruments HydroCer
KLAY INSTRUMENTSHydroCerCompact capacitive level transmitter for water, wastewater, and sludge measurement with IP68 protection. View product
KLAY INSTRUMENTSHydroCer-IPrecision capacitive level transmitter for water and wastewater applications with HART-enabled remote configuration. View product
KLAY INSTRUMENTSKMWMicroprocessor-controlled HF level switch for liquids and pastes in hygienic processing environments. View product
Klay Instruments KMW-LC
KLAY INSTRUMENTSKMW-LCCompact hygienic level switch with programmable sensitivity, IP68 protection, and switchable output logic for sanitary applications. View product
KLAY INSTRUMENTSVibraswitch-CVibraswitch-C: reliable electronic tuning fork level detection for industrial liquids across wide temperature and pressure ranges. View product
KLAY INSTRUMENTSVibraswitch-SRobust tuning fork level switch with stainless steel construction for reliable detection across all liquid types and demanding process conditions. View product
Krohne SCU 200
KROHNENewSCU 200Control and signal conditioning unit that turns any 4...20 mA level or pressure transmitter into a complete pump control and monitoring solution. View product

Related industries

Oil & GasWater & WastewaterPower & EnergyFood & BeverageChemicalMining, Minerals & MetalsMarine

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Talk to our specialists about the right instrumentation and solutions for your application.

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