NOSHOK LSE20 Series Vibrating Level Switch

Compact | Reliable | Maintenance-Free | Fast Delivery
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Product Guide

Dependable Point-Level Detection - From Pump Protection to Overfill Prevention

The NOSHOK LSE20 Series Vibrating Level Switch delivers fast, accurate, and interference-free point-level detection for liquids across industrial, mobile, and sanitary applications.

Using proven vibrating fork (tuning fork) technology, the LSE20 detects high or low liquid levels with exceptional repeatability - completely unaffected by pressure, temperature, foam, turbulence, or viscosity changes. When the fork is submerged, its resonant frequency shifts and triggers a PNP switching output. No calibration. No moving parts. No false trips.

Built from 316L Stainless Steel with an optional Hastelloy C-276 wetted parts upgrade, the LSE20 is engineered to perform in demanding environments - from aggressive chemical processes to sanitary food and beverage systems that require CIP or SIP cleaning. With a wide operating pressure range up to 930 psi, compact construction, and an intuitive LED status indicator, the LSE20 provides maximum uptime with minimal effort.

Whether protecting a pump from running dry, triggering a high-level alarm, or preventing an overfill event, the LSE20 is a set-and-trust solution backed by NOSHOK's engineering expertise and fast delivery.

Applications Include
  • Run-Dry Protection for Pumps, Tanks, and Pipelines
  • High and Low Level Alarms
  • Overfill Prevention
  • Food & Beverage Processing
  • Chemical and Specialty Fluid Processing
  • Water & Wastewater Treatment
  • General Industrial Liquid Monitoring
  • Sanitary Process Systems (CIP/SIP)
NOSHOK LSE20 Series Vibrating Level Switch

The NOSHOK LSE20 Series is a compact vibrating (tuning fork) level switch engineered for point-level detection - ideal for high or low level alarms, pump run-dry protection, and overfill prevention across a wide range of liquid applications.

When the vibrating fork becomes submerged, the resonant frequency shifts and triggers a switching output - a proven, interference-resistant detection principle that operates independently of pressure, temperature, foam, and flow. With an ultra-high operating pressure rating of up to 930 psi and sanitary-grade options compliant with ASME BPE SF3, the LSE20 is built for demanding industrial and hygienic applications alike.

Lightweight at approximately 7 oz., with a visual LED status indicator and no moving parts beyond the fork itself, the LSE20 offers maintenance-free reliability and straightforward commissioning. Available with NPT and Tri-Clamp process connections and multiple electrical configurations, it integrates easily into new and existing systems.

LSE20 Key Features & Benefits

  • Vibrating fork technology is unaffected by pressure, temperature, foam, turbulence, or viscosity - no false trips
  • High and low level detection in a single compact unit; configurable for either alarm state
  • Sanitary-ready design - CIP (clean-in-place) and SIP (steam-in-place) compatible for food and beverage environments
  • Wide viscosity range (0.1 to 10,000 cP) handles everything from water-thin to thick, viscous media
  • LED status indicator (Green: open / Red: closed / Flashing Red: error) for instant visual diagnostics
  • Hastelloy C-276 wetted parts available for aggressive or corrosive media
  • No calibration required — installs and operates without adjustment
  • 316L Stainless Steel housing with IP66/68 environmental rating for durable, long-life performance
  • Wide pressure range (up to 930 psi / 64 bar) for high-pressure process environments
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Built to Perform, Backed by NOSHOK

With a commitment to precision, durability, and value, the NOSHOK LTI20 Series embodies NOSHOK’s trusted engineering and responsive service. Whether it's for OEM integration or field replacement, this compact radar level transmitter combines accuracy, affordability, and availability - all in one rugged package.

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