Johnson Pump Automatic Switch 12/24V

Ultima Switch™ digital technology uses patented Mirus field effect sensor cells to generate a micro-electric field and detect a break in the field caused by water or liquid. The sensor cells are fully protected and never come into contact with water, do not oxidize and are not affected by oil or debris.

No moving parts, fully shielded solid-state electronics and field sensors, no environmentally harmful mercury or visible sensors. This eliminates the possibility of corrosion and etching, making the Ultima Switch™ an environmentally friendly product. The Ultima Switch starts when the liquid level is 50 mm and cuts off when the level has dropped to 20 mm. An eight-second delay prevents false starts. The Ultima Switch™ is suitable for 20 amp pumps with a voltage of 12V or 24V.