Starting at $300.00
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  • LP50 Switch Tek LP50 Non Intrusive Capacitance Level Switch
  • Accuracy: ±1mm in water
  • Dielectric range: less than 10 constants
  • Conductance range: less than 100µ
  • Level detection through plastic or fiberglass walls
  • Contact type: (1) SPST relay
  • Process temp: -40 to 176°F (-40 to 80°C)
  • Contact output: Selectable NO / NC
  • Enclosure rating: NEMA4X (IP65)
  • Enclosure material: PSO
  • Contact rating: 60 VA, 1A maximum
  • Repeatability: ± 0.5mm in water
  • Cable jacket material: Polypropylene
  • Cable type: 4-conductor, shielded #22AWG
  • Cable length: 10’(3m)
  • Conduit entrance: 1/2” NPT
  • Tank mat. comp.: Non-metallic
  • Tank mounting: bracket w/3M adhesive, plastic thermal weld
  • Tank wall thickness: less than 1”(25mm)
  • Bracket material:
    • 6005; Polyethylene
    • 1005; Polypropylene
    • 5005; PVDF


The Flowline LP50 Switch Tek Level Switch is a general purpose non-intrusive capacitance level switch that provides reliable liquid level detection of water based conductive liquids with non-coating and/or scaling characteristics with a 1A relay output. Media examples include hydrochloric, sulfuric acid and water. The liquid level sensor is bracket mounted on the exterior wall of non-metallic tanks and applied as a high level alarm or low level alarm.

Additional features and benefits of the Flowline LP50 Switch Tek Level Switch include:

  • Non-intrusive level detection through plastic or fiberglass walls
  • Installed with polyethylene, polypropylene or PVDF adhesive 3M mounting brackets
  • Rugged PSO enclosure rated NEMA4X with conduit connector
  • 60VArelay selectable NO or NC via power supply wiring polarity
  • Ideal for high purity conductive liquids
  • Three different bracket materials makes attachment to tank easy
  • Great for non-metallic or FRP tanks up to 1" thick
  • Use as a high or low level switch