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this post was submitted on 11 Nov 2023
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Just a consideration on this, but would they not also use up more battery as a "dry" sensor (assuming they use batteries as the ones I have do).
For leaks, the sensor activates when water bridges the poles, which should be a rare thing. For dry, you'd be in a constant state of activation - which I presume requires passing a current through the fluid between poles - and thus consume more battery.
It activates when it's wet, "dry" is the off state.
That was a concern for me, yeah, but the reality is that I change the batteries once a year, maybe? I can't remember the last time I did it, over a year. The amount of current that goes through is very small and they only need to send current through for less than a millisecond maybe once a second. So, super low current that's only active, maybe 0.01% of the time