SENSOR-OPTICAL, LEVEL | LS010 The Hayward Sensor-Optical, Level (LS010) is a water level sensor monitor and maintain proper water levels in pools, spas, and water features. Detects Water Level Using Optical Sensing: It uses optical technology to accurately detect the presence or absence of water. Ensures precise level monitoring without mechanical parts that can wear out. Helps Maintain Proper Water Balance: Can be integrated with automated pool systems to refill or drain water as needed. Prevents issues like pump damage from low water levels or overflow from high levels. Durable & Reliable Design: Built with weather-resistant materials for long-lasting performance in pool environments. Works in various water conditions, including pools, spas, and fountains.