Johnson Pump 36303 Ultima Electro-Magnetic Float Switch



Digital technology that uses the patented Mirus™ field effect detector cells producing micro-electrical fields that detect disruptions caused by water and fluids. Detector cells are totally sealed, are never in contact with the water, will not corrode and are not affected by oil or foreign debris.

ULTIMA activates at a 50 mm (2″) fluid level and deactivates at a 20 mm (3/4″) fluid level. An eight second delay prevents false starts. Ultima Switch is rated to handle all Johnson Pump submersible pumps up to 20 amps at 12 and 10 amps at 24 volts.

  • No moving parts
  • Totally sealed solid state electronics and field detectors
  • No mercury
  • No exposed sensors eliminate corrosion possibilities
  • Unique 3-way switch disables piezo alarm while keeping warning LED lit


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