・Starting automatic operation by capacitance mode sensor

　Capacitance mode sensor detects water level by means of measurement of water inductivity.

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・Flexible line sensor

　It’s easy to set the starting level by hand.

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・Preventing impeller lock

　When the pump does not reach to an operating state, as built-in microcomputer judges 24 hours

     have passed at an arrest state, the pump operates for 1.5 sec to prevent impeller lock.

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・Automatic Stop in accordance with a work-site

　Build-in microcomputer calculates the optimum operation time and achieves the energy saving as

    shortening dry-running period and less frequent initiation.