Starting at $44.00
  • Usually ships in 2-3 weeks



  • Engineered Plastics
  • Ideal for Shallow Tanks
  • Low Cost/High Volume Use
  • Approvals: U.L. Recognized, CSA Listed, NSF materials are Standard 61 compliant
  • Switch: SPST 20 VA, 120-240 VAC. Selectable N.O. or N.C. by inverting float on unit stem
  • Process connections: 1/8˝ NPT, 3/8˝-16 Straight Thread, G 1/8˝-28 BSP, M12x 1.75 Straight Thread
  • Lead wire or cable termination


The Gems LS-3 series single point level switches are ideal for shallow tanks and restricted spaces or for any low-cost, high volume use. The durable construction of these reed switch designs ensures long, trouble-free service. Because the effects of shock, wear and vibration are minimized, these hermetically sealed switches provide precise repeatability with no more than 1% deviation. The switch actuation points remain constant over the life of the unit.

The LS-3 series is available with a number of options to tailor the units for specific applications. Among the options for LS-3 switches:

  • Polysulfone float: for water based liquids, for limited use in oils and chemicals
  • Polypropylene float (hollow): features a low specific gravity float with broad chemical compatibility
  • Polypropylene float (Solid): offers broad chemical compatibility.
  • Buna N float: ideal for oils and fuels
  • PVDF float: corrosion-resistant PVDF for ultra-pure applications
  • Polypropylene float with slosh shield for use with turbulent liquids in small tanks
  • Bottle level for external mounting on tanks too small to accommodate internally mounted switches
  • Low flow Polysulphone float for detecting levels as low as 5/8˝ from tank bottom


This product can be used in the following applications: