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.
Over-Toilet Storage Rack Wall-Mounted No-Drill Bathroom Multi-Function Organizer for Toilet Essentials
$20.50
Kang Kati Gardenia Tea Scented Candle Gift Set – Long-Lasting Fragrance, Elegant Birthday Gift for Her
$35.10
Safety Self-Locking Lifting Hook with Adjustable Chain for Hoisting and Rigging
$140.00
Thickened Mobile Phone Waterproof Case, Waterproof Box, Sealed Container, Pressure-Resistant Box, EDC Drop-Proof Storage Box for Outdoor Travel
$12.00
Commercial Heated Display Cabinet for Crispy Pork Belly, Roast Chicken, and Cantonese BBQ - Constant Temperature Warmer for Peking Duck
$1,394.00
Mejiang Baohong Watercolor Line Art for Beginners, Coloring Book with Colored Pencils and Markers, Cat Letter Theme
$29.70
Shanghai Huamei Hair Transplant, Solution for Hair Loss, Thinning, and Density Enhancement
$6,750.00
New Direct Sale Nanda Silicone Rubber 704 Battery Fixative Adhesive Panel Light Special Glue Photovoltaic Solar Sealant
$25.85
Yonghe Hair Transplant: Top Scalp Density Enhancement (2000+ Units Fixed Price)
$33,800.00
No-Drill Bathroom Storage Rack – Toilet Paper Organizer for Dorms and Restrooms
$22.16
Premium Metallographic Polishing Cloth – White Short-Pile Velvet for Mirror Finish Grinding by Goral
$35.00
Rock Guitar Hell Training: Electric Guitar Textbook and Tutorial by Shinichi Kobayashi, Beginner to Intermediate Chinese Guitar Book and Sheet Music
$58.69
Aromatherapy Candle Resin Jelly Wax Strawberry Silicone Mold, Large Squishy Handmade Soap DIY Material
$1.90
Liboer Drill-Free Security Camera Mount & Router Shelf – Adhesive-Free Wall Bracket for 360 PTZ Cameras and Sockets
$21.90
City Hunter Theme Song Mr. Chui Saxophone Three-Piece Precise Transcription Service
$16.00
![[Deposit Group 12] New Colors: Hugging Bear Matte Low-Mid Heel Lolita Shoes - Sheep Puff with Bear Buckle](https://www.gosteppe.com/cache/small/product/268946/legacy-main-23070b08b8901297c3f91d93.webp)
[Deposit Group 12] New Colors: Hugging Bear Matte Low-Mid Heel Lolita Shoes - Sheep Puff with Bear Buckle
$38.00
Handcrafted Peach Wood and Brass Baby Rattle - Non-Toxic Paint-Free Teething Toy for Infants
$32.00
Car Tire Stone Removal Hook - Debris Cleaning Tool for Wheels
$6.19
Ceramic Rabbit Egg Holder – Creative Irregular Egg Stand for Breakfast or as a Decorative Gift
$33.82
Toilet Tank Side Shelf Bathroom Storage Rack No-Drill Organizer for Bathroom Essentials
$10.40
No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer
$8.90
Artsneak Blending Stump for Oil Pastels, Dual-Tip Sponge Brush Art Student Painting Tool Set, Washable and Crumb-Free
$14.20
75X100 Imitation Inkjet Transfer Steel Plate for Date Coding - Custom Logo and Trademark Available
$38.00
Lint-Free Cloth 1009DLE/SLE - Straight/Net Weave for UV Printhead, Screen, Lens Cleaning, Industrial Wiping Cloth
$10.80
Pirelli PZ4 Tires, Sizes 235/245/255/265/285/40/45/50/55 R19/R20/R21/R22
$350.00
Wooden Plaque Carved Signboard for Business Opening, Antique-Style Shop Entrance Header, Custom Engraved Solid Wood Couplets MWU
$182.96
Kumho ES01 Car Tires: Sizes 155/165/175/185/205 with Aspect Ratios 55/60/69 and Rim Diameters 14/15/16/17
$458.00
Mont Marte Paint Brushes, Creative Children's Painting Brush Set (3 Pieces), Tempera Brush Kit for Kids
$6.50
Baohong Watercolor Paper 300g 8K/4K - Wood Pulp A1/A3/K3 350g Fine/Coarse Grain for Watercolor and Oil Pastels 4K
$4.00
Imported IK7 Linear Bearing LM 162837 203242 254059 304564 3552O0 UU
$96.00
![[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)
