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Soil Humidity Reader for Thin Substrates  RSS feed

Posts: 1028
Location: Northern Italy
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We've been using a 3-in-one pH, soil moisture, and light meter and while it's pretty approxamative it works well for us. It cost 14 euros and does the job.

We've recently ran into a problem in which our growing medium, which was once about 3 or 4 cm thick is now around 1 cm. To make matters worse, the meter has two prongs and can't fit into the container holes in the bottom.

We've found a meter more or less like ours with one prong, costing 40 euros. That could work.

We've also found this:

But I'm not sure if that would work, and it costs 140 smackers.

Anyone have any other ideas for reading soil moisture in very tight spaces?

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