1. Non concrete Design: This innovative capacitive water level sensor works through non metallic pipe walls without touching the liquid inside. Effectively resists strong acids and other aggressive substances, avoids limescale deposit disturbances, and provides reliable operation with a longer lifespan compared to conventional sensors. 2. High Stability and Sensitivity: Equipped with advanced 5 12 V NPN output technology, this level switch exceptional anti interference functions. Effectively protects against external electromagnetic disturbances and is specially designed to handle power frequency interference. Compatible with various 5 12 V power supplies for versatile application across different monitoring systems. 3. Precise Measurement Capability: Delivers accurate and stable level detection even in boiling water, with measurement errors of less than ±1.5 mm. Works through pipe walls with a thickness of up to 20 mm and provides reliable data for monitoring critical liquid levels in industrial plants, water tanks, containers, and other liquid management systems. 4. Electronic Circuit Structure: The purely electronic design eliminates mechanical wear issues that typically lead to sensor failures over time. The solid state construction with no moving parts ensures consistent performance and minimal maintenance requirements for continuous operation in demanding industrial environments.