Magnetic float switch

A magnetic float switch comprising:

• a housing configured to float in a liquid;
• response circuitry located inside the housing;
• an internal chamber located inside the housing;
• a float state indicator housed within the internal chamber;
• and
• an actuating arm housed outside the internal chamber and coupled to the response circuitry,
• wherein, when a position of the housing changes so as to indicate an increasing level of the liquid, the float state indicator is configured to move within the internal chamber from a first position to a second position,
• wherein, when the float state indicator is in the first position, the float state indicator is at a first distance away from the actuating arm so that a magnetic force between the float state indicator and the actuating arm is insufficient to actuate the actuating arm from an inactive position to an active position,
• wherein, when the float state indicator is in the second position, the float state indicator is at a second distance away from the actuating arm so that the magnetic force between the float state indicator and the actuating arm is sufficient to actuate the actuating arm from the inactive position to the active position,
• wherein, when the actuating arm is in the active position, the response circuitry is configured to initiate a response to the increasing level of the liquid.