Smart Toilet Lid Tank Algae False Alarms? Capacitive Non-Contact Level Sensor Sticks Outside | Xingkechuang

The wash-water tank inside a smart toilet lid is dark and damp — within two months a pale-

green algae film coats the inner wall and the photoelectric lens is obscured, reporting false

full. Electrode-type probes carry a hygiene controversy because metal ions leach into the

water.

Xingkechuang's non-contact solution sticks to the tank exterior. The capacitive principle

judges liquid level; algae film and condensation produce only a tiny ΔC and are filtered out,

with only the real water level triggering. Shenzhen Xingkechuang Technology Co., Ltd.'s

solution has zero water-path intrusion, making it easier for bathroom brands to pass water-

contact hygiene certifications.