Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital Switch Output (0 and 1) |
| Detection Area | Large surface nickel-coated lines |
| Comparator Chip | LM393 Wide Voltage Comparator |
| Sensitivity Adjustment | Adjustable via potentiometer |
| PCB Size | 60mm x 20mm x 1.6mm |
| Indicator LED | Power and Trigger status lights |
| Mounting Holes | 4 x 3.1mm diameter holes |
| Application Scope | Rain detection, water level monitoring |
| Package Contents | 1x Sensor Module, 1x Pin Header |
Anonymous
Mar 30, 2026
Rating: 5/5
Perfect for my automated garden system
This sensor works flawlessly with my Arduino setup. The sensitivity adjustment is very precise, allowing me to ignore light mist but trigger on actual rain. Great value for the price.
Anonymous
Mar 24, 2026
Rating: 4/5
Good module, needs calibration
The build quality is solid and the large detection area is a plus. You do need to spend a few minutes calibrating the potentiometer to get the threshold right for your specific environment.
Anonymous
Mar 23, 2026
Rating: 5/5
Great for school projects
Used this for a university weather station project. It was easy to wire up and the documentation provided by the community helped a lot. Highly recommended for beginners.
Anonymous
Mar 23, 2026
Rating: 4/5
Solid performance
Works as described. The only minor issue is that the pins are not pre-soldered, so you need to add your own headers. Otherwise, it's a robust little sensor.
Anonymous
Mar 16, 2026
Rating: 5/5
Excellent sensitivity range
The ability to adjust sensitivity from very high to low is fantastic. I use one to close my skylight automatically when it starts raining. No false alarms so far.
Anonymous
Mar 03, 2026
Rating: 5/5
Reliable and fast response
I've tested this against heavy downpours and it triggers instantly. The digital output makes it easy to interface with microcontrollers without extra components.
Q: Does this come with connecting wires?
A: The package includes the sensor module and a set of male pin headers that you can solder yourself. Connecting wires are not included in the standard package.
Q: Can this sensor measure the exact amount of rainfall in millimeters?
A: No, this is a digital switch module designed to detect the presence of rain or water. It outputs a high or low signal based on whether water bridges the traces, but it does not quantify the volume of rainfall.
Q: Is this module waterproof for long-term outdoor exposure?
A: While the sensing area is designed to get wet, the electronic components on the back (like the chip and pins) are not fully waterproof. We recommend placing the module in a protective housing with the sensing plate exposed.
Q: What microcontrollers is this compatible with?
A: This module operates at 3.3V to 5V, making it compatible with most popular microcontrollers including Arduino Uno, Nano, Mega, ESP32, ESP8266, and Raspberry Pi (with proper logic level consideration).
Q: How do I adjust the sensitivity?
A: There is a blue potentiometer on the board. Turn it clockwise to increase sensitivity (trigger with less water) or counter-clockwise to decrease sensitivity. Test with small amounts of water while monitoring the output LED.
![[10% Off on 2 Items] Creative National Trend Thickened Felt Calligraphy Mat, Desk Pad for Brush Practice, Colorful Fresh Design for Beginners](https://www.gosteppe.com/cache/small/product/269637/legacy-main-1a4d8446daba22c1a0286ba7.webp)
[10% Off on 2 Items] Creative National Trend Thickened Felt Calligraphy Mat, Desk Pad for Brush Practice, Colorful Fresh Design for Beginners
$6.63
Premium 3D Printing Pen with PLA Filament - Professional Grade for Students, Competitions, Training, and 3D Air Drawing Crafts - Ideal Kids' Gift
$108.00
Retainer Storage Box - Portable Sealed Case for Braces, Dentures, Cleaning, and Soaking - Suitable for Children
$42.40
6-Cavity Round Maple Leaf & Butterfly Totem Large Silicone Mold for Handmade Soap – DIY Milk Soap, Essential Oil Soap Making Mold
$5.80
Acrylic Paint Brushes - Boar Bristle and Horsehair Brushes for Art Painting - Professional Gouache Brushes for Beginners
$1.00
UV Flatbed Printer for Crafts, Home, and Commercial Use - Small Inkjet Printer for Phone Cases and Industrial Applications
$6,720.00
POP MART CRYBABY Vacation Mode On Series Plush Keychain
$107.80
Flameless Aromatherapy Bottle Empty Bottle Hotel Homestay Bathroom Rattan Dried Flower Volatile Perfume Toilet Water Dispensing Glass Bottle
$8.50
Invisalign Orthodontic Clear Aligner Case - Portable Storage and Cleaning Box for Retainers and Dentures
$6.72
Over-Toilet Storage Rack with Wall-Mounted Tissue and Wet Wipe Holder - No-Drill Organizer for Bathroom Vanity
$24.77
Antique-Style Ceramic Brush Washer, Large Glazed Water Pot for Calligraphy and Painting, Complete Set with Brush Holder
$21.20
Black Rutilated Quartz and Crackle Quartz Loose Beads for DIY Crystal Jewelry
$0.58
Data Cable Organizer, Charging Cable Manager, Desktop/Wall Circuit Wire Clips, Self-Adhesive Sorting and Fixing Holder
$3.80
Beijing Dental Implants - Implant with Abutment at Bulk Procurement Price (Korea Dentium & USA Brands) by Hezhong Dental
$100.00
Universal Bamboo Joint Fume Extraction Arm Welding Smoke Exhaust Pipe Industrial Waste Gas Collection Hood Support-Free Suction Arm
$33.30
Fengzhu Wet-Dry Separation Waterproof Bag Shoulder Crossbody Pack for Outdoor Fitness Swimming Camping Electronics Storage
$109.00
Palette for Traditional Chinese Painting, Oil, Acrylic - Art Student and Kids Painting Watercolor Pigment Tray
$5.78
Huirui Polypropylene (PP) Super Glue - Fast-Setting Adhesive for Metal, Plastic, TPE, Silicone, Soft PVC, and TPU
$16.80
Bybo Dental Sweden Nobel CC Dental Implant Package Including Crown and Abutment
$6,924.00
Remote Control Negative Ion Air Purifier Home Indoor Formaldehyde Smoke Odor Haze Removal Intelligent Sterilization Disinfection Machine
$76.30
Car Tire Stone Removal Hook, Tool for Clearing Stones Stuck in Tires to Prevent Blowouts, Multi-Function Stone Extractor
$8.42
Motorcycle and E-bike Storage Hook Kit - Multi-function Hanging Hooks for Storage Boxes, Locks, and Racks
$2.01
Mojo 100% Cotton Baohong Watercolor Line Art - Beginner Watercolor, Colored Pencil & Marker Coloring Kit: Cat Letters
$32.80
![[X11] McDull Little Theater Series Plush Sticker Blind Bag, Official Authentic Trendy Collectible Hanging Ornament Toy](https://www.gosteppe.com/cache/small/product/269614/legacy-main-c0c30a047a8b8fb01f07e4d1.webp)
[X11] McDull Little Theater Series Plush Sticker Blind Bag, Official Authentic Trendy Collectible Hanging Ornament Toy
$41.60
Factory Supply Food Processing Equipment - High-Yield Fruit Pitting Machine for Commercial Berry Peeling and Mud Removal
$6,210.00
Fast Shipping Stone Removal Hook New Car Tire Stone Cleaner Tool Multi-Function Vehicle Stone Remover
$29.82
Five Elements Balance Keychain – Pixiu Charm with Natural Crystal Pendant for Wood/Fire Enhancement
$42.40
Chunfei Grocery Store: Commuter Hard Fork Low-Top Tube Mountain Bike for Urban Roads, Suburbs, School Runs, and Outings
$2,246.00
Infant Rattle Toy - Baby Soothing Shaker Drum for Newborns, Chewable and Safe for Boys and Girls
$10.90
Car Tires for Sedans and Vans, Original Equipment Sizes 165/175/185/195/205R in 14/15/16 Inches
$59.00
![[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)
