Introducing Standex Detect, a New Name in Precision Electronics

Standex Detect is part of the newly rebranded Standex Electronics family. Our focus remains on precision reed switches, sensors, and relays that deliver the right design, at the right time, at the optimal cost. Read our press release to learn more about how this change strengthens our global collaboration and innovation.

Home Products Sensors Liquid Level Sensors and Floats LS03 Series Liquid Level Sensor

LS03 Series Liquid Level Sensor

The LS03 Series is a compact, single-level horizontal mount liquid level sensor designed for reliable fluid detection and control in a wide range of applications. Featuring magnetic float actuation and integrated reed switch technology, it provides precise switching performance in both low and high-power systems.

Available in SPST-NO (Form A), SPST-NC (Form B), and SPDT (Form C) contact configurations, the LS03 Series supports rated power up to 100 W, 400 VDC, and 1.0 A. Constructed from durable PA or PP materials, it offers high temperature resistance up to 150°C and is customizable with various cable and connector options.

Standards and Certifications

RoHS Compliant
  • Horizontal mount design for side-entry installation in tanks and reservoirs
  • Multiple contact forms (Form A, B, C) for flexible switching configurations
  • Rated for up to 100 W, 400 VDC, and 1.0 A for high-power applications
  • High temperature resistance up to 150°C for demanding environments
  • Constructed from PA or PP for chemical and thermal durability
  • Magnetic float actuation with integrated reed switch for reliable performance
  • Customizable with various cable lengths and connector types
Contact Form1A (SPST) Normally Open (N.O.), 1B (SPST) Normally Closed (N.C.), 1C (SPDT) Changeover
Rated Power Max.100W/400VDC/1.0A
Shaft/FloatPA, PP/PA, PP
  • Automotive Systems: Coolant and fuel level monitoring
  • Home Appliances: Water level detection in dishwashers and washing machines
  • HVAC/R Systems: Condensate level control and overflow prevention
  • Industrial Controls: Tank level monitoring, pump activation
  • Medical Devices: Liquid detection in sterilization and diagnostic equipment
  • Test & Measurement Equipment: Fluid level sensing in lab instrumentation

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