Patented Mirus field effect detector cells: Detects water and fluid disruptions for accurate pump activation
Totally sealed, corrosion-resistant detector cells: Ensures durability and longevity in harsh environments
No moving parts: Reduces maintenance and increases reliability
No mercury or exposed sensors: Eliminates environmental and health risks
Three-second delay: Prevents false starts from water sloshing in the bilge
Summarized by Shop
This Johnson Pump - Ultima Switch - Electronic Automatic Switch is a solid-state electronic automatic switch. Ultima Switch 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 and are never in contact with the water, wil