Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 5V DC |
| Output Signal | Digital Switching Output (0 and 1) |
| Detection Threshold | Adjustable via Potentiometer |
| Probe Material | Nickel-plated Steel |
| PCB Size | 3.2cm x 1.4cm |
| Mounting Hole Diameter | 3mm |
| Indicator LED | Power and Digital Switching Status |
| Compatible Platforms | Arduino, Raspberry Pi, ESP8266 |
| Application | Automatic Plant Watering Systems |
| Package Includes | 1x Sensor Module, 1x Probe with Cable |
Anonymous
Mar 26, 2026
Rating: 5/5
Compact and effective
Small footprint fits easily into my custom enclosure. The threshold potentiometer is smooth and holds its setting well. Highly recommended for beginner electronics projects.
Anonymous
Mar 24, 2026
Rating: 5/5
Great for educational kits
Bought ten of these for a workshop. All units performed consistently. Students found them easy to integrate into their smart garden prototypes. Excellent quality control.
Anonymous
Mar 18, 2026
Rating: 5/5
Perfect for my DIY irrigation project
This module works exactly as described. The sensitivity adjustment is very responsive, allowing me to set the exact moisture level needed before the pump activates. Easy to wire up with my Arduino.
Anonymous
Mar 12, 2026
Rating: 4/5
Good value but probes need care
The sensor detects moisture changes quickly. Just remember to wipe the probes clean every few weeks to prevent corrosion, which is common with this type of sensor. Overall great for the price.
Anonymous
Mar 06, 2026
Rating: 4/5
Does the job well
Successfully used this to keep my balcony herbs alive while on vacation. The activation point is consistent. Deducting one star only because the cable could be slightly longer.
Anonymous
Mar 02, 2026
Rating: 5/5
Reliable digital output
I appreciate the clear digital high/low signal. It makes coding the logic for my automatic watering system straightforward. The LED indicators are also helpful for debugging.
Q: Is the probe cable waterproof?
A: The metal probes are designed for soil insertion, and the immediate connection point is sealed. However, the entire length of the cable is not submersible; please keep the connector end dry.
Q: Can this sensor directly drive a water pump?
A: No, this module provides a logic signal only. You must use a relay module or a transistor circuit to safely switch the higher current required by a water pump.
Q: Does this work with 3.3V systems like ESP32?
A: Yes, it operates at 5V but the digital output is generally compatible with 3.3V logic inputs. For best stability, we recommend using a 5V power source for the module itself.
Q: What is the maximum current this board can handle?
A: The onboard comparator circuit draws very little current (approx. 20mA). The output pin is a signal line and should not source more than 50mA. It is intended to trigger other devices, not power them directly.
Q: How often do I need to replace the probes?
A: Lifespan depends on soil acidity and usage. With regular cleaning to remove oxidation, they can last several months to a year. For long-term deployment, consider coating them with a conductive protective layer.
Portable Retainer Case for Braces, Orthodontic Clear Aligner Storage Box with Chewie and Removal Tool
$3.98
Freestanding Multi-Tier Toilet Storage Rack for Bathroom, Laundry, and Balcony Organization
$174.00
Biliansheng Hair Transplant and Care - Herbal Hair Nourishment Treatment Package
$480.00
Traditional Wooden Rattle Drum with Sheepskin Head for Babies - Chewable Handheld Toy with Fortune Zodiac Design
$11.90
2026 Spring New FLTRP Grade 3 English Vocabulary & Sentence Flashcards for Classroom Teaching
$8.42
Custom Signs and Labels New Version No Smoking Material Signs Five Boards One Diagram Fire Safety Instructions PVC Acrylic Number Plate
$2.00
Water Brush Pen Set with Large Capacity, Gouache and Solid Watercolor Paints, Drawing Tools for Students and Beginners
$32.00
Chineng Commercial Automatic Small Scallion Chopper, Multi-function Vegetable Cutter for Chili Slicing and Filling Preparation in Cafeterias
$16,200.00
G80 Lifting Chain with Hook Head, Manganese Steel Alloy Chain for Hoisting Stones and Towing
$79.00
Car Interior Button Frame and Window Switch Chrome Panel, New Energy Vehicle ABS Parts with Hot Melt Welding and Injection Molding
$96.00
Foldable Multi-Function Tire Stone Removal Tool for Cars
$53.60
Premium 3D Printing Pen RP600A, No Display, Best-Selling Gift for Kids, 3D Pen RP6
$230.15
Marie's Thickened 8K Watercolor Pad, 16K Portable Sketchbook for Beginners and Art Students - Travel-friendly Multi-use Painting Book
$7.23
Car Tire Stone Removal Hook - Stainless Steel Multi-Function Tool for Cleaning Pebbles from Treads
$3.80
Premium Thickened 50% Wool Felt Mat for Calligraphy and Chinese Painting - Dedicated Tablecloth for Four Treasures of the Study; Ideal for Student Practice
$2.59
Fish Chunk Meat Tumbling Mixer Dried Meat Seasoning Mixer Red Oil King Oyster Mushroom Mixing Machine Yikang Machinery
$17,419.00
Custom Company Door Plaques, Bronze Plates, Outdoor Stainless Steel Signs, Factory Display Boards, Metal Advertising Signs with Etched Customization
$25.50
Blower Motor for BMW 5 Series, 6 Series, 7 Series, 8 Series, F90 M5, G Chassis
$480.00
Large Size Thickened Felt Mat for Calligraphy, Wool Felt Pad for Brush Practice, Traditional Chinese Painting Desk Mat
$13.50
Creative Studio Sign Custom Door Plate Company Billboard LOGO Design Storefront Display
$119.00
Router Storage Box, Cable Organizer, WiFi Set-Top Box Stand, Gigabit Broadband Shelf with Wall Mount
$23.60
Baby Rattle with Teether for 0-6 Month Newborns, Sand Shaker and Hand Drum for Visual and Auditory Tracking
$10.50
Splicable Folding Food Warmer Partition Temperature Control Insulation Plate Hot Dish Plate Induction Cooker Plate Constant Temperature Heating Food Warmer Table Mat
$315.00
Marie's Kneaded Eraser Cotton for Sketching, Student-Use Blending Stump, Makeup Sponge for Art Students, Paper Blending Tool, Soft Absorbent Water-Drop Sponge Ball for Sketching
$8.33
Soft Cheese Processing Equipment, Lab-Type Cheese Stretching and Mixing Machine, Multi-Function Hot Water Stretching Unit
$210,210.00
Imported IKO Needle Roller Bearings TAF121912, 121915, 121916, 142212, 142216, 142220
$26.00
Portable Watercolor Sketchbook – 100% Cotton Mini Square Pocket Book for Travel, On-the-Go Sketching, Tear-Off Art Pages
$10.90
Dongguan Rotary Pad Printer Manufacturer - Fully Automatic 4-Station Pad Printer for Plastic, Metal, Text, Patterns, and Logos
$500.00
Custom Solid Wood Plaque, Antique-Style Wooden Sign with Engraving, Shop Signboard, Couplet, Carved Wood Plaque
$17.00
No-Drill Over-Toilet Storage Rack for Bathroom Wall Gap Behind Tank
$24.55
![[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)
