Hopper Level Sensor

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The LS6000 is an economical, hopper and grain level switch and sensor that can sense a wide range of liquid and dry materials. Its robust design and durable Delrin insulator make this unit well suited for use in dry materials, such as powders, sand, aggregate, grain or other bulk solids. Unlike rotating paddles, vibrating forks or other mechanical instruments, the LS6000 bin and powder level switch and sensor has no moving parts. There are no motors to burn up, bearings to wear out or parts to jam. Proprietary radio frequency (RF) technology provides excellent level measurement and stability while having the ability to ignore significant product buildup, thus eliminating the need for recalibration.


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 hopper level sensor is activated and gives the desired output.

The standard probe is made of a solid 316 stainless steel rod, 1"NPT process connection and Delrin insulator. Teflon and other material insulators are optional. 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’s level switches have been a lifesaver. We are now using these level switches on all of our oil storage tanks, some to control pumps and others to indicate oil level. Their customer support has been as awesome as their well-made products.”

-Mechanical Eng. Technician
VanTran Industries, 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.

All the necessary calibration indicators are on-board so all you need to calibrate the LS6000 bin and powder level switch and sensor 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. Special materials of construction are available. Please consult factory.

Babbitt also offers Audible & Visual Alarm Boxes that can be used to accompany any of our single point, dual point or multi-point level switches. Alarm boxes provide simple and reliable warning of high or low-level alarm conditions in tanks, vessels, silos, hoppers, sumps, chutes and interface applications. To learn more, click the link here.

LS6000 Level Switch

general purpose level switch


  • Ignores significant product build up
  • Solid state, no moving parts
  • Simple installation and calibration
  • Explosion proof housing standard
  • Probe length easily field modified
  • Rugged construction handles roughest products


  • 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
  • Wood Chips



Power: 115VAC (+/- 15%) 50/60Hz, 2 watts STANDARD (12 VDC, 24VDC or 230VAC Optional)

Output: 2 Form C Contact DPDT relay, 5 amp resistive at 125, 230VAC; 30VDC

On Board Fuse: 250mA

Failsafe: Selectable High or Low level

RF Frequency: Approx. 1.3 MHz


Temperature: Delrin insulator -30F to 250F STANDARD
                        Teflon insulator   -30F to 450F (Optional)

Pressure: 1500 psi @ 75F – 1” NPT STANDARD
                  300 psi @ 75F – ¾” NPT (Optional)

Enclosure: Cast Aluminum, Explosion Proof -  Class I, Groups C & D; Class II, Groups E, F & G


Need assistance in selecting the right part number? Please fill out and submit an LS6000 data worksheet.