A water heating pad's lifespan depends not only on the heating tube and pump but also on "critical small parts" like the level sensor. A fragile sensor can cause premature failure. Limescale is a primary cause.XINGKECHUANG Sensor: Designed for LongevityThe lifespan of XINGKECHUANG's non-contact sensor depends on its semiconductor chip, potentially lasting decades, outliving the pad itself. Users need never worry about level detection failure.For brands, using long-life core components reduces costs and builds a "durable" reputation. The XINGKECHUANG long-life sensor helps your pad become a quality product that stands the test of time.