Turck LS-5 Programmable Liquid Level Sensors

The Turck LS-5 liquid level sensor is a probe-style level sensor that is inserted into a vessel for the purpose of measuring liquid level. The LS-5 liquid level sensor generates a low power electromagnetic pulse that is conducted down the probe. When this pulse contacts a liquid, a portion of that pulse is reflected back to the sensor. The time it takes for this pulse to be transmitted down the probe and reflected back is measured and then converted into a linear distance. This principle of operation is also commonly referred to as guided wave radar (GWR).


  • Liquid level detection for both metallic and non-metallic vessels
  • Output: 4-20mA/0-10V and switching PNP or NPN
  • No moving parts
  • Probes can be cut to length to ensure correct insertion depth
  • IO-Link 1.1
  • Sensing probe ignores deposits
  • Suitable for small vessels and difficult vessel geometries
  • Minimal programming setup required
  • One sensor for both point and continuous level control
  • Easy-to-use programming parameters to counter application factors that would render other level sensing technologies unsuitable
  • Accessories available to accommodate non-metallic vessels and low dielectric constant fluids

Turck LS-5 Programmable Liquid Level Sensors

Turck Technical Datasheets