Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 5V DC |
| Detection Area | Large Surface Pad |
| Output Type | Digital Switch (DO) & Analog (AO) |
| Relay Capacity | 5V Trigger, up to 10A Load |
| Sensitivity | Adjustable via Potentiometer |
| PCB Dimensions | 60mm x 20mm |
| Mounting Holes | 4x 3.1mm Diameter |
| Indicator LED | Power and Trigger Status |
| Connector Type | PH2.0 3-Pin and Screw Terminal |
| Application | Rain Alarm, Water Level Detection, Auto Wipers |
Anonymous
Mar 27, 2026
Rating: 5/5
Excellent component for the price
Very impressed with the large surface area compared to smaller sensors I've used before. It reduces the chance of missing a rain event due to wind direction. Highly recommended for anyone building weather stations.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable water detection
I used this to detect overflow in a water tank. It has been running outdoors under a protective mesh for two weeks without false alarms. The build quality of the PCB looks solid and the gold plating on the traces seems durable.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for my smart garden project
This sensor works exactly as described. The large detection area makes it very responsive to even light drizzle. I connected it to an Arduino and the relay triggered instantly when water was applied. Great value for the price.
Anonymous
Mar 14, 2026
Rating: 5/5
Great for learning electronics
Bought this for a university project on home automation. The documentation online is plentiful, and the module is very straightforward to interface with microcontrollers. The LED indicators help a lot during debugging.
Anonymous
Mar 10, 2026
Rating: 4/5
Works well for automatic wipers
Integrated this into a prototype for automatic windshield wipers. The response time is fast enough for safety applications. Just ensure you seal the connections if using it in a high-humidity environment long-term.
Anonymous
Mar 10, 2026
Rating: 4/5
Good sensitivity, easy to calibrate
The potentiometer allows for fine-tuning the threshold, which is essential depending on how much rain you want to trigger the alarm. The only minor issue is that the screw terminals are a bit small for thick wires, but standard jumper wires fit perfectly.
Q: Does this come with the connecting wires?
A: The package typically includes the module only. You will need to source your own Dupont jumper wires or solder wires to the screw terminals depending on your setup. Some seller bundles may include wires, so please check the specific listing options.
Q: Can this module directly control a 12V water pump?
A: The module itself operates at 5V, but the onboard relay can switch higher voltages. Please check the specific relay rating printed on the component (usually 10A at 250VAC or 30VDC). As long as your 12V pump draws less than the relay's maximum current, it will work safely.
Q: What is the difference between the DO and AO pins?
A: DO (Digital Output) provides a simple HIGH/LOW signal when the water threshold is crossed, which is adjustable via the potentiometer. AO (Analog Output) provides a voltage proportional to the conductivity of the water, allowing you to measure intensity or water level depth in code.
Q: Is the sensor pad resistant to corrosion over time?
A: The exposed traces are gold-plated to resist oxidation and corrosion. However, for permanent outdoor installation, we recommend applying a conformal coating to the non-sensing parts of the PCB and ensuring the sensor pad is cleaned periodically to remove debris.
Q: Can I use this with a Raspberry Pi?
A: Yes, you can use it with a Raspberry Pi. Connect the VCC to 5V (or 3.3V if the module supports it, though 5V is safer for the relay), GND to GND, and the DO pin to a GPIO input. Remember to use a pull-up or down resistor configuration in your code if necessary, though the module usually handles the logic levels well.
Double Loop Chain Lifting Sling, Manganese Steel Double-End Ring Hoisting Chain, G80 Manganese Steel Lifting Rigging 1/2/3/5T
$98.00
Hesdige JG-376 Portable Stone Removal Hook - Multi-Function Tool for Cleaning Gravel from Car Tire Treads
$16.91
Used 90% Condition Removed Car Tires 165 175 185 195 205 215 225 235/50 55 60 65 R13 14 15 16 17
$68.00
Blower Assembly AC Motor Fan for Changan CS75, Raeton CC, Oshan A800, and CS35 - Original Equipment
$427.73
Professional Sketch Blending Knife - Gray Tone Sponge Blender for Details and Highlights - Art Exam Tool
$2.90
Yuanzhi Water Bucket Rack 3/4/5 Tier Single Row with Board V-Shaped Water/Paper Cup Pure Mineral Water Bucket Storage Stand
$143.00
Rubber Wheel Chock 460x180x160 Anti-Slip Triangular Wedge
$354.33
Household Small Range Hood Portable USB Desktop Smoke Extractor for Living Room Hot Pot BBQ Odor Removal Mini Fume Extractor
$39.00
Household Water Dispenser Stand - Multi-Tier Floor Rack for Bottled Pure Water and Mineral Water in Offices
$129.74
WYPALL* Microfiber Cleaning Cloths Yellow 83610, 6 Sheets/Pack * 4 Packs/Case
$132.76
Ceramic Ink Dish, Water Dish, Brush Rest, Ice-Crack Ink Box, Multi-Function Brush Washer, Ink Stone, Brush Holder, and Kung Fu Tea Cup
$1.90
Car Tire Stone Removal Hook, Foldable and Extendable Tool for Extracting Pebbles from Treads
$2.07
Touchscreen Waterproof Phone Pouch for Swimming and Rafting, Sealed Bag for Beach, Sand, Snorkeling, and Underwater Photography
$5.53
Chunfei Grocery Store Yunan GR02 Gravel Bike, Thru-Axle, Mechanical Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts
$6,441.00
Electric Guitar Tutorial for Beginners - 7-Week Self-Study Plan with Exercises, Corrections, and Materials
$219.00
Professional Bathtub-Style Brush Washing Set - Cute 3-Piece Watercolor and Chinese Painting Brush Cleaner with Palette
$11.80
![[Sold Out & Discontinued - Display Only] Radish Defense ABO20.0 Spring Tour Series Blind Box Figure](https://www.gosteppe.com/cache/small/product/269201/legacy-main-5af4651a8d30dc42d9412600.png)
[Sold Out & Discontinued - Display Only] Radish Defense ABO20.0 Spring Tour Series Blind Box Figure
$16.90
Ebru Marbling Plastic Tool Kit – Needles, 3-Prong Combs, Cones, Straws, and Droppers for Peacock Patterns
$1.28
CANDLE.LAB | Silicone Border Mat for DIY Scented Candles and Soap Making Tray Mold
$32.00
Shiji Runde Coal Shed Mine Dust Removal Explosion-Proof Anti-Freezing Fog Cannon Port Dust Suppression 80m Ultra-Fine Industrial Fog Machine
$4,180.00
Mobile Retractable Spray Booth for Furniture - Foldable Track-Mounted Painting Room
$6,240.00
Long Handle Bristle Paint Brush - Hog Hair Brush for Oil Painting, Acrylic Wall Art, and Children's Drawing
$1.80
Electrostatic Powder Coating Equipment and Electronic Powder Dispenser Supply
$17,250.00
DIY Toast-Shaped Silicone Mold for Handmade Soap - Square Soap Making Mold
$105.00
Kindergarten Sponge Stamp Set – Mushroom-Head Circular Printing Tools for Kids' DIY Art and Painting Kits
$3.50
Heavy-Duty Lifting Chain Set – Manganese Steel Chains with Hooks, Rings, and Hoist Accessories
$198.00
Car Tire Stone Removal Tool, Multi-Function Groove Hook for Portable Tire Picking and Cleaning
$11.50
m Dogs Strap Auto Retractable Dual Dog Leash With
$199.92
Traditional Wooden Sheepskin Rattle Toy – Safe for Teething Newborns, Handcrafted Baby Bell Shaker
$17.80
Soilless Cultivation Equipment Plant Factory Display Rooftop Hydroponic Pipe System for Leafy Vegetables and Fruits, Type A Planting Rack
$2,620.16
![[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)
