Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | Capacitive |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Analog (AO) and Digital (DO) |
| Material | Nickel-plated Copper |
| Corrosion Resistance | High (Long-term use) |
| PCB Size | 60mm x 20mm |
| Adjustable Sensitivity | Yes, via Potentiometer |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
| Application | Smart Gardening, Automatic Watering |
| Package Includes | 1x Sensor Module, 1x Connector Cable |
Anonymous
Mar 20, 2026
Rating: 4/5
Accurate moisture detection
Very sensitive to changes in soil moisture. I noticed it reacts quickly when I water my succulents. Just make sure to bury it deep enough to get an average reading of the root zone.
Anonymous
Mar 16, 2026
Rating: 4/5
Great value, easy to calibrate
Works exactly as described. The potentiometer makes it very easy to set the threshold for the digital output. Only giving 4 stars because the included wires are a bit short for my setup, but otherwise excellent.
Anonymous
Mar 13, 2026
Rating: 5/5
Finally, a sensor that doesn't rust!
I switched from resistive sensors to this capacitive one, and the difference is night and day. After three months in the soil, there is zero corrosion. The readings are stable and perfect for my automated tomato garden.
Anonymous
Mar 11, 2026
Rating: 5/5
Durable and consistent
We use these in our community garden automation system. They have withstood rain, direct sun, and varying soil types without drifting in calibration. Excellent build quality for the price.
Anonymous
Mar 04, 2026
Rating: 5/5
Reliable for student projects
Bought a batch for our high school robotics club. Students find them easy to interface with, and they survive being buried in dirt repeatedly. No failures so far after a semester of use.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for smart home projects
Integrated this with an ESP32 and Home Assistant. The analog output provides granular data which helps me water my plants only when necessary. Highly recommended for any IoT gardening kit.
Q: Is the digital output pin necessary if I am reading the analog value?
A: No, the digital output (DO) is optional. It acts as a simple switch based on your potentiometer threshold. If you are reading precise moisture levels via the analog pin (AO), you do not need to connect the DO pin.
Q: Can this sensor be used directly with a 3.3V microcontroller like the ESP8266?
A: Yes, this module operates comfortably within the 3.3V to 5V range, making it fully compatible with ESP8266, ESP32, and standard 5V Arduino boards.
Q: Does this come with code examples for Arduino?
A: While the package includes the hardware, you can find numerous open-source code examples and libraries on GitHub and the Arduino IDE example finder by searching for 'capacitive soil moisture sensor'.
Q: How deep should I insert the sensor into the soil?
A: For best results, insert the sensor vertically so that the entire nickel-plated sensing area is submerged in the soil, typically about 4-5 cm deep, avoiding contact with rocks or pot bottoms.
Q: Will this sensor work in hydroponic setups?
A: This sensor is designed specifically for measuring moisture in soil or substrate. It is not recommended for full submersion in liquid water or hydroponic solutions as it may affect the calibration and longevity.
Underbite Corrector Case - Portable Magnetic Lanyard Storage Box for Frankel Appliance and TB Palatal Expander
$22.70
Car Tire Stone Removal Tool, Multi-Function Hook for Picking and Extracting Stones from Treads
$6.43
Outdoor Lamp Stand for Camping, Lantern Holder Pole for Street Vending and Night Fishing
$13.89
Waste Removal and Paper Stacking Machine, Automatic Paper Collection and Counting Receiver for Carton Printing Equipment, Carton Factory Machinery
$6,400.00
Sheepskin Baby Rattle - Chewable Traditional Handmade Shaker Bell, Intangible Cultural Heritage Essential for Newborn Care
$57.00
Zhizhi Study Room 'Small Pot Sky' Brush Washer - Traditional Handmade Glass with Lost-Wax Method, Silk Luster, Double-Compartment Water Vessel
$457.00
Zao Boshi Insulated Food Cart - Programmable Banquet Warmer for Buns, Breakfast Items, and Hotel Dry/Wet Dishes
$11,566.00
![Lichuan JK [Blood Oath] - Original Authentic Japanese Dark Style Embroidered Sailor Suit - Spring/Autumn Set](https://www.gosteppe.com/cache/small/product/269363/legacy-main-0b86f0b7795c15ee2c8be0d3.webp)
Lichuan JK [Blood Oath] - Original Authentic Japanese Dark Style Embroidered Sailor Suit - Spring/Autumn Set
$59.00
Sink Storage Rack Stainless Steel No-Drill Kitchen Sponge Steel Wool Cloth Pot Lid Organizer Wall-Mounted Drain Rack
$4.93
Sketch Blending Stump Set for Artists - Detail Highlight and Shadow Smudging Tools with Replacement Tips
$14.80
Softening Agent for Board Arcs Melamine Softener Eco-Friendly Board Paint-Free Board Whole House Customization Arc Softener
$9.30
Car Tire Stone Removal Tool - Hook Picker for Cleaning Pebbles from Vehicle Treads
$3.90
Electrical Box with PLC System and VFD for Fans and Pumps
$2,519.00
Zunjue Watercolor Sketchbook 300g Fabric-Covered Journal – Portable Acrylic Marker Book, 100% Cotton Flip-Style Concertina Drawing Paper
$13.70
French Imported Arches Watercolor Paper, Handmade Cotton Pulp 300g Full/Half/4K/8K/16K/32K Rough/Medium/Fine Grain, 185g Cotton Pulp for Postcards and Watercolor Books
$20.80
![[Official Authentic] Zichao Bear Wanda Cinema Popcorn Acrylic Keychain Plush Doll Cute Toy](https://www.gosteppe.com/cache/small/product/269355/legacy-main-ae40bf0d9a6007e2f30a9130.webp)
[Official Authentic] Zichao Bear Wanda Cinema Popcorn Acrylic Keychain Plush Doll Cute Toy
$25.40
Heidelberg Printing Press Automatic Blanket Wash Cloth - Non-Woven Cleaning Fabric, 500m Roll
$3,185.00
Bucket Pack Natural Wood Colored Pencils Water-Soluble for Kids Coloring and Doodling
$6.65
Chunfei Grocery Store Yunm'an GR02 Gravel Bike - Thru-Axle Disc Brake, Lightweight Touring with Multiple Rack Mounts
$6,444.00
Variable Frequency Drive Power Board ZPOW-591 for ACS880
$2,200.00
Professional Sketching Eraser Kit - Blending Stumps, Sponges, and Paper Tortillons for Highlight & Shadow Correction
$3.90
Weighted Water Bag with Handle, Thickened PV Mesh Gravity Ballast for Banner Stand Fixation (8KG)
$35.10
Ultra-Fine Purification Lint-Free Cloth Cleaning Cloth Lens Wipe High Quality 0730 Water-Absorbing Dust Removal UV Nozzle 100 Sheets
$96.00
Wen Zhengming Small Regular Script Calligraphy Cards: Li Sao Jing, Thousand Character Classic, Qin Fu, Cao Tang Shi Zhi, Qing Jing Jing, Record of the Drunken Pavilion, Red Cliff Ode
$59.00
Zhizhi Manshu Zhao Mengfu Small Regular Script Collection of Ancient Classics (Vol. 1) - Calligraphy Copybook, Brush Writing Cards, Foldable Practice Cards
$49.00
Language of Drums Motion Path Set - Essential Creativity and Rhythm Teaching Material for Drum Kits and Jazz Drums
$59.14
onlycook Sink Drain Basket, Faucet-Mounted Food Residue Separator and Washing Strainer - 1 Pack
$14.10
Heavy-Duty Wiper Arms and Blades for Trucks and Agricultural Vehicles - Universal Replacement Wiper Rubber Strips
$5.50
Bus Adapter FEPL-02 for ABB Variable Frequency Drive
$1,230.00
Baby National Trend Rattle Toy – Chewable Silicone, Easy-Grip Handle, Soft Sound for Early Learning
$19.90
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
