Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 5V DC |
| Output Type | Digital Switch Output (0 and 1) |
| Comparator Chip | LM393 |
| Sensing Area | Large-area nickel-plated lines |
| Power Indicator | Red LED |
| Output Indicator | Green LED |
| Adjustable Sensitivity | Yes, via potentiometer |
| PCB Dimensions | 62mm x 20mm x 16mm |
| Mounting Hole Diameter | 3.0mm |
| Application Scope | Rain detection, water level monitoring, leak alarms |
Anonymous
Mar 28, 2026
Rating: 5/5
Great for learning electronics
Bought this for a university project on IoT home automation. The digital output makes it incredibly simple to read data without complex analog conversion code. Highly recommended for beginners.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect for my weather station project
This sensor module works exactly as described. The sensitivity adjustment is very responsive, allowing me to calibrate it for light drizzle versus heavy rain. Easy to interface with my Arduino.
Anonymous
Mar 13, 2026
Rating: 5/5
Reliable water detection
I used this to detect leaks under my sink. It triggers the relay instantly when water touches the board. The separate PCB design allows me to place the sensor remotely from the control circuit.
Anonymous
Mar 09, 2026
Rating: 4/5
Works well, needs enclosure
The sensor itself is fantastic, but remember you need to 3D print or buy an enclosure if using it outdoors long-term, as the components are exposed. Functionality is top-notch though.
Anonymous
Mar 09, 2026
Rating: 4/5
Good value, sturdy build
The PCB looks well-made and the nickel plating on the sensing lines seems durable. I deducted one star because the included header pins were slightly bent, but nothing a quick fix couldn't solve.
Anonymous
Mar 03, 2026
Rating: 5/5
Excellent sensitivity range
The potentiometer gives a wide range of adjustment. I can set it to ignore humidity but trigger on actual water droplets. Very satisfied with this purchase for my smart garden system.
Q: Can this module directly drive a 12V pump?
A: No, this module operates at 5V and the relay on board is typically rated for low current. You should use the module's signal output to control a separate transistor or higher-power relay driver for a 12V pump.
Q: Can I use this with a Raspberry Pi?
A: Yes, you can connect the digital output pin to a GPIO pin on the Raspberry Pi. Just ensure you are referencing the 5V logic levels correctly, as some Pi models prefer 3.3V logic; a voltage divider may be needed for the signal line.
Q: What is the response time when water is detected?
A: The response time is nearly instantaneous, typically within milliseconds, as it relies on the conductivity change detected by the LM393 comparator chip.
Q: Is the sensor pad replaceable if it corrodes?
A: The sensing lines are printed directly on the PCB. If they corrode significantly over years of use, the entire board would need replacement. However, the nickel plating is designed to resist oxidation for extended periods.
Q: Does this come with connecting wires?
A: The package usually includes the PCB module and a set of header pins for soldering. Connecting wires are generally not included, allowing you to cut them to your specific project length.
Orthodontic Retainer Case for Invisible Braces, Portable Storage and Cleaning Box for Teeth Aligners and Dentures
$23.10
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
![[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)
