This 3-metre float pressure switch is designed for automatic water level control in tanks, sumps, and cisterns. When the water level rises or falls, the buoyant float triggers the switch to automatically control pumps or solenoid valves. The durable rubber body (blue/yellow) is fully waterproof and suitable for both freshwater and mildly treated water applications. The 3-metre cable provides flexible installation. A reliable, maintenance-free solution for residential and commercial water management systems.