--- product_id: 31361131 title: "DFROBOT Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant" brand: "dfrobot" price: "A$51" currency: AUD in_stock: true reviews_count: 7 url: https://www.desertcart.com.au/products/31361131-dfrobot-gravity-analog-capacitive-soil-moisture-sensor-corrosion-resistant store_origin: AU region: Australia --- # Capacitive sensing 3.3-5.5V range Gravity interface DFROBOT Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant **Brand:** dfrobot **Price:** A$51 **Availability:** ✅ In Stock ## Summary > 🌟 Elevate Your Gardening Game! ## Quick Answers - **What is this?** DFROBOT Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant by dfrobot - **How much does it cost?** A$51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/31361131-dfrobot-gravity-analog-capacitive-soil-moisture-sensor-corrosion-resistant) ## Best For - dfrobot enthusiasts ## Why This Product - Trusted dfrobot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🔧 Hassle-Free Setup:** Easily integrates with DFRobot's Gravity I/O expansion shield. - • **🌿 Real-Time Insights:** Stay ahead of the game with instant soil moisture data! - • **🌍 Eco-Friendly Choice:** Promote sustainable gardening with this innovative sensor. - • **💧 Corrosion Resistant:** Built to last, ensuring durability in any environment. - • **📊 Accurate Measurements:** Capacitive sensing technology for precise moisture readings. ## Overview The DFROBOT Gravity Analog Capacitive Soil Moisture Sensor offers a cutting-edge solution for monitoring soil moisture levels. Utilizing capacitive sensing technology, it provides accurate readings while being corrosion resistant. With an operating voltage range of 3.3 to 5.5V, this sensor seamlessly connects to DFRobot's Gravity I/O expansion shield, making it an essential tool for both amateur and professional gardeners. ## Description INTRODUCTION This product measures soil mositure levels by capacitive sensing, rather than resistive sensing like other types of moisture sensor. It is made of a corrosion resistant materal giving it a long service life. Insert it into soil and impress your friends with the real-time soil moisture data! The product includes an on-board voltage regulator which gives it an operating voltage range of 3.3 ~ 5.5V. It is compatible with low-voltage MCUs (both 3.3V and 5V logic). To make it compatible with a Raspberry Pi, an ADC converter is required. This sensor is compatible with our 3-pin "Gravity" interface, which means it can be directly connected to the Gravity I/O Expansion Shield. The following image shows an example project - a device that notifies you when a plant needs to be watered. APPLICATIONS Gardening & Farming Moisture Detection Intelligent Agriculture SPECIFICATION Operating Voltage: 3.3 ~ 5.5 VDC Output Voltage: 1.2 ~2.5 VDC Interface: PH2.0-3P SHIPPING LIST Capacitive Soil Moisture Sensor x1 Analog Sensor Cable x1 ## Features - This analog capacitive soil moisture sensor measures soil moisture levels by capacitive sensing, rather than resistive sensing like other types of moisture sensor - Insert it into soil and impress your friends with the real-time soil moisture data - This module includes an on-board voltage regulator which gives it an operating voltage range of 3.3 ~ 5.5V - This sensor is compatible with DFRobot 3-pin "Gravity" interface, which can be directly connected to the Gravity I/O expansion shield. Download User Guide on this page for more. (Technical Specification - User Guide) ## Product Details - **Brand:** DFROBOT - **Color:** Black - **Item Weight:** 4.54 g - **Operation Mode:** Analog - **Manufacturer:** DFRobot - **UPC:** 720405675893 ## Images ![DFROBOT Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant - Image 1](https://m.media-amazon.com/images/I/61lDSDcuyzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Get this and stop replacing those corroding moisture sensors! *by T***T on September 13, 2016* This capacitive soil moisture sensor does not corrode like the cheapy little non-capacitive/standard soil sensors you see around (those usually corrode within a month or so, sometimes less). This analog sensor from DFRobot is supposed to last years without going bad!This operates at nearly the same voltage (3.3 ~ 5.5 VDC) and works without additional resistors needed. The moisture range differs from standard sensors. Dry is 520-430, moist is 430-350, and wet is 350-260.On this sensor, you will see a white line near the component side - this is your moisture/water warning level, meaning you do not want moisture above that as it can damage the components. I am using this in a planter that will be watered on and off as needed and didn't want to worry about components getting wet, so I put it in a project box (uxcell Waterproof Plastic Electric Project Case Junction Box (2.3x1.4-Inches, 5pcs) that I then cut a hole into on the side with a dremel tool about the width of the sensor. I also cut a smaller hole on top for the sensor wires. I slide it in and added some foam padding to keep it in place. Lastly, I used acid-free silicone (GC Electronic Grade Silicone Sealant / Adhesive (3oz.) : 19-155) to waterproof the ends.Attached are some pictures to help give you an idea of my process water proofing it. I didn't take one with silicone on it yet, but that is a crucial step!I love this thing. I'm so happy with it and excited to be using it in my smart greenhouse project. I will keep this review updated in case it fails early or I run into trouble, but I certainly feel MUCH better about using a capacitive moisture sensor from DFRobot than the cheapy standard ones that corrode after a short time... who wants to keep replacing those? Not me.I highly recommend you do a search on the web for "dfrobot capacitive soil moisture sensor wiki" as they have a lot of great info on this device, including example code and recommendations, best practices, etc.I hope this review was helpful and will save people some time! ### ⭐⭐⭐⭐ Pretty good *by C***N on March 27, 2017* It's a good little moisture sensor for an Arduino or any other microcontroller out there. Very sensitive in terms of reading an moisture. However, and oddly enough, the drier the moisture sensor, the higher output voltage occurs. In other words, when you dunk this in water, you're output voltage would be a lot lower than than when it's completely dry. I thought about the behavior of why this happens and I only thought about a simple reason why: Kind of like a touch screen a cell phone, when it comes into contact with other elements, the capacitance discharges. The moisture content and output voltage are INVERSELY related.One very large downside to this product is that the circuit at the very top is exposed. You can see the exposure on the metal pins on the 555 Timer and the capacitors, which is not really okay. However, you can probably resolve this if you put some silicone glue on it. One thing I do like about this product is that it lasts longer than your little tiny copper resistor rated moisture sensor.UPDATE: I finished my senior engineering project with this guy and it got the job done. During my project, I had to come up with some way to characterize the sensor since there was no information about its characteristics. The graph below will kind of show you the consistency of the moisture sensors. The different colored lines represent each moisture sensor used since I used five for my project. The dotted line represents the "trend line". I recommend experimenting multiple sensors for yourself. You can use this data to determine when particular things occur for your program on the Arduino. ### ⭐⭐⭐ Stuck the sensor in flower pot, poured 2 deciliter ... *by A***R on May 18, 2018* Stuck the sensor in flower pot, poured 2 deciliter of water around the sensor and got reading of 511. Now, about 1 hour later, I get reading 705 and increase stopped. Is that normal? Could it be that the sun warming the pot, the sensor and the electronics could have done it? --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.au/products/31361131-dfrobot-gravity-analog-capacitive-soil-moisture-sensor-corrosion-resistant](https://www.desertcart.com.au/products/31361131-dfrobot-gravity-analog-capacitive-soil-moisture-sensor-corrosion-resistant) --- *Product available on Desertcart Australia* *Store origin: AU* *Last updated: 2026-06-03*