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Specification
- Pin: Analog signal output, GND, VCC
- Operating voltage: 3.3- 5.5 VDC
- Output voltage: 0-3 VDC
- Interface: PH2.54-3P
- Size: 98 x 23mm (LxW)
- This capacitive soil moisture sensor distinguishes most of the resistive sensors on the market and uses capacitive sensing to detect soil moisture. It is made of corrosion resistant material which gives it an excellent service life.
- Insert it in to the soil around your plants and With a screen and a motherboard, you can talk to your plants. To see if your plants is thirsty, do they need more water to moisten it?
- Built-in voltage regulator chip, support 3.3-5.5V DC, can be used for your Arduino and Raspberry Pi project
- Applications: Garden plants ,Moisture detection ,Intelligent agriculture
- Note: This sensor will monitor the soil moisture according to the principle of capacitive sensing, so put in different soil moisture, tightness, insertion depth will reflect different humidity
- If you need tutorial, please down load the online PDF on the product's page.
Alberto Brinas
Reviewed in the United States on September 3, 2024
no los he usado, pero sé que son buenos, porque en otras ocasiones los he probado
Mohamed
Reviewed in the United Arab Emirates on May 13, 2024
Ok
Khanno
Reviewed in the United States on November 11, 2024
I was initially excited about the Gikfun Capacitive Soil Moisture Sensor, but unfortunately, it didn’t last long. After a short time, the contacts corroded, making it unusable. Disappointing durability for something intended for moisture monitoring
Nezzerath
Reviewed in the United States on July 6, 2023
I bought these because my other soil moisture sensors corroded within a week.these capacitive soil moisture sensors are very accurate and stay accurate because they do not breakdown.Very easy to hook up and work with and you do not have to worry about your project failing or troubleshooting why your soil is not watered.I would still recommend not supplying power to them 24/7, a few times a day have them power on and check the soil moisture then power them back off unless you have very water specific plants.
LG Lawrence
Reviewed in the United States on June 9, 2023
Sensor installed fine and reports values as expected, though I have learned that it is very temperature dependent. For outdoor applications where there are day/night temperature swings, this skews results pretty significantly. This can likely be compensated for with a temperature sensor, but it would be nice for this product to include that as a pre-packaged solution.
M. V. Willems
Reviewed in Canada on August 6, 2021
Protect the sides, I would recommend.But it's a step above the conductive sensors, which do not work well. These should last. I am happy. Arduino usage very simple.
Bassem Z.
Reviewed in the United Arab Emirates on August 25, 2020
Good , sensitive.
Zeb
Reviewed in the United States on September 14, 2019
I don't think you can really calibrate these without drying soil in a kiln to get 0%. Instead what I did is measured the reading in air and call that 0% and take the reading submerged to the line in water and call that 100%. With this system a range of 40-70% seems to be about right for my plants. I conformal coated the electronics on top, and I buried them only to the line. I've had one running for a couple of months and it's working great. I'm about to buy 6 more to add more channels.Update: a few of them have gone wonky, I think due to water effecting the electronics. What I'm doing now is coating the electronics with a thick layer of liquid tape, hopefully that will prevent the problem. They definitely need to be coated with something.Edit: Over time more than 50% of these have died on me. Even with liquid tape completely covering the electronics. I think perhaps water is infiltrating the layers of the PCB from the edges? Anyway I can't recommend them for long term installations unless you have no other options.
Chandra Saran
Reviewed in Canada on July 28, 2019
Worked as expected. Good product.
Charlie
Reviewed in the United States on June 4, 2019
These devices work great for my small automated grow system! The only thing that you need to do before using them is to coat the electronics at the top with a couple layers of conformal coating (or clear nail polish in a pinch). If you don't it is possible to get incorrect readings if the electronics get wet.
Immovable World
Reviewed in the United States on May 26, 2019
I got these to make an automatic plant feeder as a first raspberry pi project. The sensors detect if they are wet, dry, or somewhere in-between perfectly fine. Took a little setup inside the pi and finding the right libraries to use but it works.They had one issue but I will not take a star off for this because it might be the library I used. There was not a "true zero" so I had to make it true zero inside my code. I don't remember the exact numbers but fully wet was a 55,000 reading and fully dry was 34,000 I believe. So I just used the difference between that of 21,000 as my 1 to 100% measurement. I can explain further if someone needs it, just leave a comment on this review.I also purchased some conformal coating to protect the boards. Even with my sloppy job on one of them(only trying to get the edges) it still works.
Mr. DMC
Reviewed in the United States on November 3, 2019
I bought these sensors for a plant waterer i have been working on. after reading some of the other reviews i took the time to coat with conformal and i added some additional silicone and heat-shrink tubing for the connector.my project is running on an Adafruit Trinket M0 using CircuitPython. Things were working great at the beginning, then they weren't. Turns out when i added my 3.3v voltage regulator to power the board, i had moved the sensor's VCC from the board to the regulator. i later found out that the regulator needs some capacitors to even out the voltage. when i moved the sensor VCC back to the board output, readings went back to being reasonably stable.i added a median filter and a mean filter to the code to help smooth out any sensor data fluctutions. the sensor is not super accurate, but it definitely works well enough for my project.around the same time i also purchased one of Adafruits fancy I2C soil sensors. after seeing the size difference, i feel that it would be too small for bigger plants. so i'm glad that i also purchased these.i would definitely purchase these again.
Tony
Reviewed in Canada on January 23, 2019
They were pricey compared to purchasing from offshore. I need them in a hurry. They work very good and no special driver is required to work in Arduino, just the analog input.
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