Starting at $320.00
  • Usually ships in 1-2 weeks



  • Model LP15 Switch Tek Capacitance Level Switch
  • Accuracy: ±1mm in water
  • Dielectric range: less than 20 constants
  • Conductive range: less than 100µ
  • Guard circuit optimizes performance
  • Submersible polypropylene sensor body
  • Contact type: (1) SPST relay
  • Contact rating: 60 VA, 1A maximum
  • Contact output: Selectable NO / NC
  • Process temp: -40 to 176°F (-40 to 80°C)
  • Pressure:
    • 150 psi (10 bar) @ 25ºC
    • Derated @ 1.667 psi (0.113 bar) per°C above 25°C
  • Sensor rating: NEMA6 (IP68)
  • Sensor material: Polypropylene
  • Repeatability: ±0.5mm in water
  • Cable jacket material: Polypropylene
  • Cable type: 4-conductor, shielded #22 AWG
  • Cable length: 10’ (3m)
  • Process mount: 3/4” NPT (3/4” G)
  • Supply voltage: 12-36 VDC
  • Consumption: 25 mA maximum


The Flowline LP15 Switch Tek Capacitance Level Switch is a general purpose guard capacitance point level switch that provides reliable high or low liquid level detection of water based conductive liquids with light coating, crystallizing or scaling characteristics with a 1A relay output. Media examples include copper sulfate and brine. The RF guard circuit eliminates the coating signal path between the active and reference electrodes. The submersible polypropylene liquid level sensor is universally mounted through non-metallic tank walls or inside the tank as a high level alarm or low level alarm.

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

  • Guard circuit optimizes performance in coating type media
  • Submersible polypropylene sensor body and cable for corrosive liquids
  • 60VA relay selectable NO or NC via power supply wiring polarity
  • Compatible with Smart Trak and Switch-Pak installation fittings
  • Ideal for side wall or top mount
  • Ideal for coating liquids
  • Great for waste water applications