Anyone getting unstable readings from HW-038 after long use?

kasuo

I’ve been testing the water level sensor HW-038 with my Arduino setup for continuous tank monitoring, but after a few hours submerged, the analog values start drifting. Has anyone found a reliable way to stabilize the output—like using a coating, resistor adjustment, or calibration routine?

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linux_rulezz

Throw out this piece of shit and buy capacitive or inductive level-meter.
Or even something like this. A line of hall-sensors activating by floating magnet, works like a variable resistor with resistance changed by steps.

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Anyone getting unstable readings from HW-038 after long use?

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