LS2000 Low-Cost Level Sensor

The LS2000 is a low-cost level switch that can measure virtually any liquid or dry material. It can even sense the difference between oil and water. The proprietary radio frequency (RF) balanced impedance bridge has exceptional temperature stability, thus eliminating the need to recalibrate the unit from season to season.

When the probe is installed, it is calibrated in absence of material touching the probe. When the desired material comes in contact with the probe, the relay switches and gives the desired output.

The standard probe is made of a solid 316 stainless steel rod, ¾" NPT process connection and the insulator is made of Ultra-High Molecular Weight Polyethylene (UHMWPE). Teflon insulators are optional. UHMWPE has excellent abrasion and impact resistance while the optional Teflon insulators allow for high temperature operations. The standard seals are made with Viton "O" rings. All the electronics are housed in a cast aluminum explosion-proof enclosure.

Customer Testimonial

“Babbitt International is my go to source for cost effective, quick lead time, reliable level switches. Shipment is either same day or next business day, and we have had excellent performance of these switches in the field. – Nate Sneed, McGraw Equipment Inc"

Nate Sneed- Application Engineer
McGraw Equipment, Inc.

The solid stainless steel rod is available in a variety of lengths and is suited for liquids or bulk solids. These probes can be coated with Halar in lengths up to 72 inches. A blind-end probe option is also available for applications where a wet material build-up may foul a horizontally mounted probe.

The blind-end unit has no visible probe because the insulating material completely covers the sensing probe. All the necessary calibration indicators are on-board so all you need to calibrate the LS2000 is a small screwdriver.

Fail-safe electronics provide peace of mind. The modular electronics make trouble shooting and repair a snap. The entire unit is backed by our two year warranty, 60 day money back guarantee. Other materials of construction are available. Please consult factory.

Product Features:

  • 10 amp, SPDT relay output
  • Solid state, no moving parts
  • Simple installation and calibration
  • Explosion proof housing standard
  • Probe length easily field modified
  • Fail safe electronics


  • High or low level alarms
  • Sump control
  • Oil/water interface detection
  • Dry pump protection


  • Waste/Wastewater
  • Acids/Caustics
  • Chemicals/Oils
  • Slurries

Dry Solids:

  • Flour/Grains
  • Powders
  • Plastics
  • Sand/Cement


Electrical Power:

115VAC (+/- 15%) 60Hz, 2 watts or 24VDC @ 32 mA maximum Output: 1 Form C Contact SPDT relay, 10amp resistive at 125VAC, 8 amp @ 250VAC, 5 amp @ 30VDC Failsafe: Selectable High or Low level RF Frequency: Approx. 1.3 MHz


Temperature: UHMWPE insulator -30F to 180F Teflon insulator -30F to 450F

Pressure: 300 psi @ 75F Note: at 180F, psi should not exceed 15psi

Hazardous Area: Housing is CSA and UL approved for Class I, Div. 1, Groups C & D; Class II,Groups E,F & G; Class III NEMA 4

 Ordering Information

Standard Probe Style
MODELSupply Voltage"S” – 316SS Probe
“H”- Halar Probe
Probe length in inches
LS2000 115VAC S 10"

Blind-end Probe Style:
MODELSupply Voltage"U" - UHMWPE
Probe length in inches
LS2000 115VAC U 4"


LS2000 Wire Level Switch

point level switchliquid level switch