Automatic Water Level Controller — Liquid Level Sensor & Pump Float Switch, 4 Modes, AC 220V/110V and DC 12V/24V Detector for Water Tanks

Hands-free level control that automatically starts and stops pumps according to water level, eliminating the need for manual monitoring in water tanks, deep wells and sump pits. The unit features a built-in liquid level sensor and provides 4 selectable operating modes, including supply (tank filling) and drain (pit emptying) functions. Broad voltage support lets the controller run on AC 220V/110V and DC 12V/24V, making it compatible with most pumps, solenoid valves and ball valves. Installation is simple: a supplied detector cable allows flexible positioning without complex wiring and lets this device replace a conventional float switch. For safe, dependable operation it includes power overload protection and clear mode indicators to show status at a glance. Suitable for residential use and light commercial applications, this controller delivers reliable automatic water level management.