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Your cart is empty.The sensor has a built-in voltage regulator chip that supports a 3.3~5.5V wide voltage operating environment, which means it can work even at 3.3V. Most modules only require an external ADC (analog to digital) converter module to work.
John B.
Reviewed in the United States on January 17, 2025
Ordered the 5 pack. Placed them all in the same container and 3 were very accurate with each other and 2 would not read at all. Used moist and dry containers to calibrate them with my esp32 project before sending them to the planters. Bought these on recommendations of other Amazon post.
Shane Benetz
Reviewed in the United States on December 24, 2024
I was able to do a project with these and they worked really well. I did a lot of research on these and I think there are a lot of versions of this product that have some knockoff parts that don’t actually work, but this one seems to be legit!
JE
Reviewed in the United States on November 28, 2024
These types of soil sensors are superior to the resistive type, but manufacturing issues abound. Fortunately these don’t fall into that category. All 5/5 worked for me.
Jane Alsop
Reviewed in the United States on April 29, 2024
Quality good
Jeremy
Reviewed in the United States on March 5, 2022
Works as described. Calibrated by measuring in free air and dunked in glass of water. I will be looking for versions of these devices with a digital output however so one ESP board can monitor multiple devices.
Robert Mech
Reviewed in the United States on March 16, 2022
Have been using these a while, they work well. I'm concerned that they may die from eventual corrosion over time but after all we are shoving a PCB into spil. So far though they worked well for ESPHome and I get fairly accurate readings. Just measure the voltage at 100% saturation of your soil and also read it "dry" before putting into your plant. Has been working well and I'll probably order these again.Tip to the manufacturer: These would be so much better if you had some mounting holes on them. DIY-ers like myself build enclosures and I could easily attach my ESP32 directly to the soil monitor enclsoure that is 3D Printed. Without mounting holes I have to rely on pure pressure to keep the sensor in place. A couple of M3 holes at the top would be a nice addition. So would some solder points so I didnt have to use the cable but not nearly as important.
Brandon
Reviewed in the United States on November 17, 2022
The 5 modules I received had the correct components (some other manufacturers use older chipsets or don't include the voltage regulator. The ones I received are all working well and build to the correct schematic
drb
Reviewed in the United States on November 19, 2020
I had previously ordered a package of five of these from the same vendor. But, several failed so I bought this set of five to replace the failed ones. This units in this batch were different from the first giving different output values for 0 and 100% moisture than the others. But the first two of this batch have failed to 100% moisture output after only a few days in service. Hopefully I can find two others from this batch that won’t fail but I definitely won’t buy any more of these.
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