GRL801 Water Level Controller Liquid Level Relay Key Features and Benefits: Wide Voltage Compatibility: Operates on AC/DC 24240V (5060Hz), making it suitable for a variety of environments and power systems. Reliable Current Capacity: Rated for 10A, ensuring dependable performance for connected equipment. Adjustable Sensitivity: 5100 kΩ sensitivity range allows precise control for different liquid types and conditions. Automatic Water Level Management: Monitors both maximum and minimum water levels to automatically activate connected devices such as electric ball valves, water pumps, and controllers. Practical Applications: Ideal for maintaining water levels in fish ponds, reservoirs, swimming pools, and water tanks. Operating Indicator and Control: LED Status Display: Green LED: Power status indicator (steady on confirms power supply is normal). Red LED: Operation status indicator for connected devices. Example Usage with Pump: When water exceeds the probe, the red LED lights up and the pump drains water until levels drop. When water falls below the lowest probe, the red LED turns off and the pump refills the container. This cycle maintains water levels within a safe operating range automatically. Compact and Easy Installation: Dimensions: 90 x 18 x 64 mm (3.5 x 0.7 x 2.5 inches). Weight: 3.8 ounces. Simple Mounting: Designed for 35 mm DIN rail installation without screws for quick setup. MaintenanceFriendly: Compact design allows for easy removal and servicing without complex tools. Durable, Quality Construction: IndustrialGrade Material: Made from quality, flameretardant plastic for longlasting use. Compliance: Certified to CE, CB, and RoHS standards for safety and environmental responsibility. Sealed Design: Equipped with a sealing ring to protect internal components from dust and oxygen, enabling stable performance even in humid conditions. Practical Use Scenarios: 1. Fish Ponds: Automatically maintains the correct water level to protect aquatic life and reduce manual monitoring. 2. Swimming Pools: Ensures water levels stay to prevent pump damage and maintain user safety. 3. Water Tanks in Agricultural Settings: Controls irrigation water supply efficiently without constant supervision.