2pcs Water Level Switch Sensor Controller What it is: a twopack DIY kit to automate water level management in tanks, pools, or reservoirs, helping you control levels with minimal effort. Key benefits: automatically pump water in or out based on detected liquid levels; suitable for both residential and commercial applications; versatile for a range of water management needs. Easy setup and operation: userfriendly design enables automatic pumping according to sensor readings. The green color adds style while helping the device blend with existing equipment. Build and durability: each component weighs 30.0 g, making installation straightforward. The water level switch is made from quality materials to ensure durability and reliable performance in varying environmental conditions. Compatibility and performance: designed for residential and commercial use, providing a reliable, practical solution for automatic water level control. Use scenarios: 1) Domestic water tanks: automatically maintain desired water levels by triggering pump operation. 2) Pools: manage pool water by automatic up or drain based on level detection. 3) Small reservoirs or irrigation systems: automate water supply for garden irrigation or rainwater harvesting.