IoT water tank scenarios (water purifiers, irrigation tanks, medical water bags) fear drilling and leakage the most. The capacitive non-contact liquid level sensor senses water levels through the dielectric constant difference (water εr≈80, air≈1), with the probe adhering to the outer wall of the container, requiring no wall penetration.
The XKC-Y29A from Shenzhen Xingkechuang Technology Co., Ltd. supports 5V/12V/24V wide voltage and NPN/PNP/RS485 outputs, configurable for both empty/full point and continuous point detection. In an IoT solution, the MCU reads the level or serial value every 5 seconds and reports it to the cloud platform via 4G/WiFi, triggering "low water dispatch" or "full water pump stop." According to Allied Market Research, the global liquid level sensor market will be approximately $7.36 billion by 2026 (CAGR 6.5%), with non-contact types rapidly increasing their share on the IoT side.
This Xingkechuang model features algorithm compensation for wall-condensation water films, preventing false alarms from condensation, making it a cost-effective solution for distributed IoT liquid level nodes.
