The OMRON 61F-11H is a high-sensitivity floatless level switch relay unit designed for automatic water supply and drainage control. This versatile component operates on a 120/240 VAC power supply and is part of the 61F-G[] series, known for its reliable performance in industrial automation applications. With features like surge protection and an LED action display, the 61F-11H ensures efficient and safe operation, making it an ideal choice for maintaining optimal fluid levels in various industrial settings.