Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switch Output (0 and 1) |
| Detection Area | Approx. 5cm x 3cm |
| PCB Size | 32mm x 14mm |
| Indicator LED | Power and Digital Switch Output |
| Comparator Chip | LM393 |
| Sensitivity Adjustment | Adjustable via Potentiometer |
| Connector Type | 3-Pin PH2.0 or Dupont Header |
| Application Range | Smart Agriculture, Garden Automation, DIY Kits |
| Material | FR-4 PCB with Gold Plated Contacts |
Anonymous
Mar 30, 2026
Rating: 5/5
Excellent for school robotics kit
Bought this for a high school robotics competition. It was easy to integrate into our automatic watering system code. The digital output makes logic simple.
Anonymous
Mar 29, 2026
Rating: 4/5
Good module, needs waterproofing for long term
The detection is accurate and fast. However, if you plan to leave the probes in the soil permanently, I recommend coating the contacts with a conformal coating to prevent corrosion over time.
Anonymous
Mar 24, 2026
Rating: 4/5
Works as described
Simple plug-and-play for 5V systems. Just remember to use the analog pin if you want specific moisture levels, though this module is primarily designed for digital threshold detection.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for my Arduino project
This sensor works flawlessly with my Arduino Uno. The sensitivity adjustment is very responsive, allowing me to calibrate it exactly for my potted plants. Great value for the price.
Anonymous
Mar 18, 2026
Rating: 5/5
Reliable and consistent
I've tested three of these units, and they all give consistent readings. The LED indicator is bright enough to see status at a glance without checking the serial monitor.
Anonymous
Mar 10, 2026
Rating: 5/5
Great addition to smart home setup
Integrated this with an ESP8266 to monitor my indoor herb garden. Notifications work perfectly when the soil gets too dry. Highly recommended for beginners.
Q: Does this measure exact moisture percentage or just dry/wet status?
A: This specific module provides a digital switch output (High/Low) based on a threshold you set with the potentiometer. For exact percentage values, you would need to read the analog signal from the probe directly, bypassing the comparator chip.
Q: What is the maximum current draw of this module?
A: The module typically draws less than 20mA when active. The power LED and comparator chip are low-power components suitable for battery-operated projects.
Q: How long can the probes stay in the soil before corroding?
A: The nickel-plated probes are durable, but prolonged exposure to moist soil can cause oxidation over several months. For permanent installations, we suggest applying a waterproof conformal coating to the metal traces.
Q: Is there a library available for this specific sensor?
A: Since this is a generic digital/analog sensor, it does not require a specific proprietary library. You can read it using standard digitalRead() or analogRead() functions in the Arduino IDE.
Q: Can this sensor be used directly with a 3.3V microcontroller like ESP32?
A: Yes, the module operates within a 3.3V to 5V range, making it fully compatible with 3.3V logic microcontrollers like the ESP32 or ESP8266.
Imported INA Needle Roller Bearings: 9NA, NA 2940, 4R22, 4924, 4926, 4928, 4930-XL A
$109.00
High-Purity Nitrogen Generator for Reflow Soldering and Wave Soldering - Efficient Energy-Saving Transformer Protection for Electronics Factories
$46,100.00
Baohong Watercolor Paper 300g Wood Pulp Medium Grain A3 Full Sheet, Coarse/ Fine Grain Academy Grade 4K, A2, A1, A4 Artist Paper 2K for Art Students
$3.40
Manyue Handmade Natural Soy Wax and White Beeswax for DIY Low-Temperature Scented Candles – Includes Candle Cups and Jelly Wax
$5.46
Car Tire Stone Removal Tool Hook and Rake for Cleaning Tread Debris
$4.53
Caiyan Blending Sticks for Oil Pastels and Sketching, Dual-Tip Soft Wax Crayon Tools for Art Students, DIY Smudging, Highlighting, and Color Mixing
$8.20
Aizaofang Six-Cavity Leaf Stamp Silicone Mold for DIY Handmade Soap, Approx. 108g per Bar
$16.90
Sea to Summit Outdoor Rafting Waterproof Dry Bag Storage Backpack for Clothes, Large River Waterproof Bag 420D
$83.30
Natural 5A Gold Rutilated Quartz Loose Beads - DIY Crystal Jewelry Making Supplies, Round Single Beads
$2.56
Rubber Cable Raceway and Speed Bump with Movable Cover
$31.44
Manufacturer Shaftless Conveyor Uniform Transport No Backflow Customizable Sizes Two-Year Warranty
$7,455.00
Curved Commercial Steamed Bun Machine - Small Glass Display Cabinet for Convenience Stores, Mantou Warmer, Baozi Steamer, Corn Warmer
$338.00
U-Shaped Rubber Sealing Strip, N-Edge Rubber Strip, Edge Wrapping Strip, Iron Sheet Decorative Strip, Rubber Edge Sealing Strip
$102.00
Rongbaozhai Calligraphy Felt Mat - Creative Printed Desk Pad for Brush Writing and Chinese Painting
$14.20
Car Tire Stone Hook, Multi-Function Rust-Resistant Tool for Removing Stones, Picking, and Scraping Tire Debris
$8.33
Hanmo Brocade Wrist Rest Traditional Four Treasures Study Gourd-Shaped Arm Pad Calligraphy Hand Pillow Artistic Fresh Wrist Rest
$9.10
West Coast Chicano Script Art, Glowing Decorative Painting for Shop Opening Gifts and Living Room Background Walls
$430.00
G80 Heavy Duty Chain SHQ - 2m/6m/8m/10m Short Chains for Manual Chain Hoists
$8.51
Commercial Food Warmer Small Heating Thermostat Display Cabinet Countertop Chestnut Egg Tart Bread Glass Cooked Food Cabinet
$188.00
Eye-Protection Highlighter Pens for Elementary Students - Colored Markers for Key Points, Note-Taking for Middle Schoolers, Journaling Pens
$1.51
Play Instantly! Steel Tongue Drum Starter Kit with Smart Practice App and Full Accessories - Perfect for Personal Use or Gifting
$338.00
Rubber Cable Protection Ramp Wire Channel Cover Outdoor Ground Crossing
$15.05
Sketch Blending Knife Set for Artists – Highlight, Detail, Shadow Blending Tools with Cotton Swabs, Scrapers, Sponge Tips, and Replacement Heads for Still Life Drawing
$4.20
Wenxin Tang Calligraphy and Painting Felt - Ancient Art Series, Double-Sided Wool Felt with Leather Desk Mat for Calligraphy and Painting, Colorful Soft Stain-Resistant Felt for Brush Writing Practice, Traditional Chinese Painting Supplies
$32.30
Construction Backfill Ceramsite Lightweight for Bathroom Garage Roof Base Concrete Roof Sloping Gardening Planting
$430.00
Scented Candle Making Kit - DIY Tools Including Wax Melting Pot, Thermometer, Heating Stove, and Containers
$6.46
Stainless Steel Multi-Function Bathroom Storage Rack - Over-Toilet Shelf with Multi-Layer Floor Standing Cabinet for Washing Machine
$48.98
Variable Frequency Drive Safety Function Module FSO-12 Kit
$9,900.00
Wheel Lug Nuts Compatible with Ford Focus, Kuga, Mondeo, Escort, EcoSport, Everest
$59.50
Cardboard Box Wholesale Taobao No.10/12 Paper Box Packing Hard Small Carton Half-Height Postal Express Packaging Box Custom
$0.14
![[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)
