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How Do Float Switches Work?
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- Robert JLv 72 months ago
Most types now use a magnetic "reed switch", with a magnet in the moving float.
The switch is closed if the magnet is alongside it and open otherwise; the same as a typical burglar alarm type door or window sensor switch.
The position of the switch within the mechanism relative to the range the float can move, sets whether it's closed with the float up or down.
- CBLv 72 months ago
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