Conductivity type Dual Tank Water Level Controller is suitable for Home, high rise buildings, as well as in industries for effluent treatment plants, water treatment plants, and waste water treatment plants. The Water Level Controller has LED indicators for high and low levels of over head an underground water tanks, pump and mains on indication. The Dual Tank Water Level Controller is equipped with automatic or manual by-pass and mains on or off toggle switches. Conductivity type Dual Tank Water Level Controller is equipped with 4 numbers of sensors.