Magnetic Float Level Switch
Float-operated level switch for clean liquid high-low alarms, pump protection and simple tank control.
Duty: Point levelDetails →
Level Switches
Point level switches for high/low alarm, pump protection and simple level control.
Common specification problems· 01
Problems we solve before quoting.
Common specification problemsOnly high-low alarm is needed
A level switch can be simpler than a continuous transmitter for pump and overflow protection.
Common specification problemsLiquid or powder behavior affects switch style
We select float, tuning fork or capacitance type from medium and installation point.
Product range· 02
Level Switches product families.
Tuning Fork Level Switch for Liquids
Vibrating fork point level switch for liquid overfill, dry-run protection and process interlock duty.
Media: LiquidsDetails →
Vibrating Rod Level Switch for Bulk Solids
Vibrating rod point level switch for granular and coarse bulk solids in silos and hoppers.
Media: Granular solidsDetails →
RF Capacitance Level Switch
Capacitance point level switch for liquids, slurries, foam, interfaces and selected bulk solids.
Media: Liquid / solid / slurryDetails →
RF Admittance Level Switch
RF admittance point level switch for sticky liquids, powders, slurries and buildup-prone applications.
Media: Sticky liquid / powderDetails →
Rotary Paddle Level Switch
Electromechanical point level switch for dry bulk solids in bins, hoppers and silos.
Media: Dry bulk solidsDetails →
Conductive Level Switch
Electrode level switch for conductive liquids in tanks, sumps and pump-control applications.
Media: Conductive liquidsDetails →
Non-Contact Capacitive Level Sensor
Compact non-contact capacitive level sensor for water tanks, plastic containers and OEM liquid detection points.
Install: Outside non-metal tank wallDetails →
Compact Tuning Fork Level Switch
Mini tuning fork level switch for small tanks, pipes and compact liquid detection points.
Fork: Mini / compactDetails →
Explosion-Proof Tuning Fork Level Switch
Hazardous-area tuning fork level switch for liquid overfill, dry-run and safety interlock duties.
Approval: Ex option by modelDetails →
Tuning Fork Level Switch for Powders
Large-fork vibration level switch for powders, granules and low-density bulk solids.
Media: Powder / granulesDetails →
Cable Float Level Switch
Suspended cable float switch for sump pumps, water tanks and simple liquid level control.
Mounting: Cable suspendedDetails →
Side-Mounted Float Level Switch
Side-entry float switch for compact tank high/low alarms and OEM liquid-level interlocks.
Mounting: Side entryDetails →
External Ultrasonic Level Switch
Externally mounted ultrasonic level switch for sealed tanks where a non-contact high/low alarm is required.
Install: Outside tank wallDetails →
Selection guide· 03
How to specify level switches.
How should point level switches be matched to the medium?
Level switches provide a high or low alarm point instead of a continuous level value. They are used for overflow prevention, dry-run pump protection, low-level shutdown, high-high alarms and demand level detection in tanks or silos.
The switch principle should follow the medium. Float switches suit many clean liquids when the float can move freely. Cable float switches are common in sumps. Tuning fork switches can handle liquids or powders by model. Rotary paddle and vibrating rod switches are mainly used for dry solids. RF admittance can help with sticky or coating media when configured correctly.
Conductive switches only work with conductive liquids and should not be selected for oil, solvents or non-conductive chemicals. External ultrasonic or non-contact capacitive switches need tank-wall and installation review; they are not universal replacements for an inserted switch.
Fail-safe logic matters. Confirm whether the PLC or relay expects normally open, normally closed, PNP, NPN, NAMUR, two-wire or dry contact output, and whether the alarm should be triggered on power loss, probe fault or only on material contact.
For RFQ, send medium, density or bulk density, particle size, dielectric if known, buildup risk, alarm height, mounting orientation, process connection, power supply, output logic, contact rating, material requirement and hazardous-area requirement.
Type comparison· 04
Compare types at a glance.
| Type | Best for | RFQ note |
|---|---|---|
| Float switch | Clean liquids and simple tank control | Orientation and liquid density |
| Cable float switch | Sumps and pump control | Cable length and contact logic |
| Tuning fork switch | Liquids or powders by model | Density, viscosity and buildup |
| Vibrating rod switch | Bulk solids | Bulk density and particle size |
| Rotary paddle switch | Dry powders and pellets | Bulk density and paddle style |
| RF admittance switch | Sticky slurry, foam or buildup | Dielectric and buildup risk |
| Conductive switch | Conductive liquids | Conductivity and electrode length |
Browse by material & tag· 04b
Materials, outputs & options.
PPPVCAnti-corrosion Cable316LStainless SteelPTFE304Cast AluminumPlastic HousingPVDFExplosion-proofLevel switchMagnetic levelUltrasonic levelCustom rangeWetted materialLogo/MarkingProcess connectionExplosion-proof optionMounting bracketCable lengthOutput type
Browse by industry· 04c
Where level switches is used.
Chemical Storage TanksChemical and petrochemical storage
External Ultrasonic Level Switch - Configured per medium and rangeView solution ->Silo & Powder LevelPowder silos and bulk solids
Vibrating Rod Level Switch for Bulk Solids - Configured per medium and rangeView solution ->Water & Wastewater LevelWater utilities and wastewater plants
Non-Contact Capacitive Level Sensor - Configured per medium and rangeView solution ->FAQ· 05
Level Switches questions.
Use a switch for one alarm/control point. Use a transmitter when the PLC needs continuous level.
Only if the float can move freely. Sticky or viscous service may need another principle.
It is often selected for sticky, coating or buildup-prone media where simple capacitance can false alarm.
No. Conductive switches require conductive liquids, so oil and many solvents are unsuitable.
Send the PLC or relay logic: NO/NC, relay, PNP, NPN, NAMUR, two-wire or contact rating.
Need level switches? Send your conditions.
Engineering confirms the product family before quotation.
We received your inquiry — reference sent to your email.
Uploaded reference files are included with the inquiry. For larger CAD packages, reply to the confirmation email or send them here:
Our team typically replies within 24 hours.
Related categories· 06
Explore other product lines.
Radar Level Meters
60 GHz and 80 GHz radar level meters for tanks, rivers, silos, wireless telemetry, high temperature and dusty self-cleaning applications.
Range: 7-120 m classExplore →
Ultrasonic Level Meters
Integrated, split, compact, low-blind-zone, corrosion-resistant and explosion-proof ultrasonic level meters with analog, relay and RS-485 options.
Range: 0-3 m to 100 mExplore →
Hydrostatic Level Transmitters
Cable, armored, small-diameter, anti-corrosion, smart HART and flush-diaphragm hydrostatic transmitters for continuous liquid level signals.
Range: 0-200 mH2OExplore →