Mercury free design uses patented detector cells to detect fluids and initiate pumping.
Johnson pump ultima auto float switch.
When the water level has sunk to a level of 20 mm and the first detector cell is above the water level the pump is stopped.
Since 1968 west marine has grown to over 250 local stores with knowledgeable associates happy to assist.
Return to previous page marine bilge ultimaswitch.
Just snap in on the t slot on the base.
Johnson ultima automatic bilge pump switch.
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The detector cells are totally sealed and are never in contact with the water will not corrode and are not affected by oil for foreign.
Ultima switch mfg 36303 auto bilge pump switch with mirus field effect detector cells will not corrode and are not affected by oil or foreign debris.
Ultima auto float switch for johnson 12v or 24v bilge pumps.
For the bilge auto switch to work it should have power to it at all times even if the battery switch is turned off if you have a battery switch.
Shop read reviews or ask questions about johnson pump ultima electronic bilge pump switch at the official west marine online store.
Johnson pumps 01674 001 1600 gph heavy duty automatic bilge pump with ultima switch 12v red.
Installation the ultimaswitch is designed to attach to all johnson pump bilge pumps.
Johnson 39 s ultimaswitch switch is a highly reliable contactless switch with no mechanical parts or toxic mercury that touch the water level and automatically controls a 12 or 24 v dc bilge pump.
The johnson ultima switch uses the patented mirus field effect detector cells producing micro electrical fields that detect disruptions caused by water and fluids.
Detector cell at 50 mm 2 the switch starts the pump with a 3 second delay.
Johnson s unique detector cells are sealed so they are never in contact with the water won t corrode and are unaffected by oil or debris.
I installed the ultimaswitch on a johnson 1 600 gph bilge pump using its t slot mounting system and screwed the completed assembly to 3 8 inch starboard along with rule a matic plus and sure bail mechanical type float switches.
To test the switch and compare it with two float switches i commonly see installed in boats i set up a simple test tank.
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