Using the same patented Mirus™ field effect sensor cell as the Johnson Bilge Alert alarm system, the Ultima Switch is totally sealed, has no moving parts, will not corrode and is not affected by oil or foreign debris. Suitable for all Johnson Pump submersible pumps and most other pumps up to 20 amps rating for both 12 or 24 volt installations. Ideal for bilge pumps, shower pumps and other grey water pumps where reliability is essential.
The 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.
- No moving parts & no mercury
- Totally sealed solid state electronics and field detectors
- No exposed sensors eliminate corrosion possibilities
- Environmentally sensitive
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