Level sensor: when to pick float, when ultrasonic, and when capacitive
We install level sensors on open tanks, septic pits, boilers, silos and process vessels. The three types our customers buy most often. Float (mechanical): cheapest, we ship them into sewage pump stations and wells where the liquid is homogeneous and does not stick. Ultrasonic: contact-free with the liquid, we keep these for aggressive chemicals and food-grade jobs; a typical customer of ours is a brewery with 5-15 m³ tanks. Capacitive: for bulk solids in silos (grain, cement) and for oils or fuels.
If you have water in a 2-5 m³ barrel and just need to switch a pump, take a float-type Schneider XS610B1MAL2 or Sick LFV310. If the liquid is aggressive or viscous (heavy oil, acid, sludge), you need a non-contact ultrasonic: Pepperl+Fuchs UC4000-30GM-IUR2-V15 or Endress+Hauser FMU30 with 0-8 m range.
How we size it: three questions we ask before the order
One: what is the liquid, and can it foam, stick or crystallize. If yes, we drop the float idea and pick a radar (Sick LFR50) or capacitive (Vega VEGACAP 64). Two: tank height and measurement range. For 30-100 m wells we ship hydrostatic submersibles only (Endress+Hauser Waterpilot FMX21, 50 m cable in stock). For 1-3 m tanks an ultrasonic with 4-20 mA output is enough. Three: output type (relay for simple on/off, analog 4-20 mA for VFD or PLC).
Our typical mix in stock: Germans (Sick, Endress+Hauser, Pepperl+Fuchs), French (Schneider Electric XSP/XS), and Korean Autonics CSB18M (capacitive-inductive) for budget jobs. Manufacturer warranty 1-2 years, delivery from our Kyiv warehouse in 1-3 days. When the sensor pairs with a VFD for a borehole pump, we ship the pump VFD in the same box.
| Model | Manufacturer | Measurement Type | Range | Application |
|---|---|---|---|---|
| FTE30-AAA1 | Endress+Hauser | Vibrating fork | Point level | Liquids, water treatment |
| FTL31-AA4U2BAWDJ | Endress+Hauser | Vibrating tuning fork | Up to 3 m | Chemical, food industry |
| DF21A1C5G1AS2 | MOLLET | Capacitive | 0–2000 mm | Bulk solids, silos |
| 7ML5221-1BB11 | Siemens | Ultrasonic | 0–40 bar | Water utilities, tanks |
| DBLM3140 | Dwyer | Float | 0–100 mm | Small volume vessels |
Level Sensor Manufacturers
Our catalog features level sensors from manufacturers with decades of experience in industrial automation:
- Endress+Hauser — 33 models: vibrating, radar, capacitive and hydrostatic level transmitters from the Levelflex, Liquiphant and Micropilot series for any industrial media.
- MOLLET — 12 models: capacitive and rotary sensors from the DF series for bulk solids and granulates in silos and hoppers.
- Siemens — 8 models: ultrasonic and radar level transmitters from the SITRANS series for water treatment and chemical industry.
- Dwyer Instruments — 5 models: float and capacitive sensors for compact vessels and HVAC systems.
- Sick — 4 models: optical and ultrasonic sensors for non-contact level measurement.
Level Sensors by Specifications
Select a sensor by key parameters: other sensor categories include optical sensors for non-contact detection, proximity sensors for positioning, and pressure sensors often used alongside level instruments for hydrostatic level measurement methods.
Warranty and Support
All level sensors come with official manufacturer warranty. We provide technical consultation for model selection, assistance with output signal configuration and PLC integration. Delivery across Ukraine: Kyiv, Kharkiv, Odesa, Dnipro, Lviv and other cities. Payment by bank transfer for legal entities, card or cash on delivery available.
