Gravity: IP65 Capacitive Soil Moisture Sensor SEN0308
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Gravity: IP65 Capacitive Soil Moisture Sensor SEN0308
🧩 The Gravity: IP65 Capacitive Soil Moisture Sensor (SEN0308) is a rugged, fully waterproof soil moisture sensor designed for long-term outdoor deployment in gardens, farms, and smart irrigation systems. Using capacitive sensing technology, it delivers higher durability and accuracy than traditional resistive sensors — ideal for environmental monitoring, smart agriculture, and automated plant care.
🔌 Compatible with Arduino, ESP32, and Raspberry Pi, this sensor ensures precise soil moisture detection even in harsh, humid, or submerged environments.
🔧 Key Features
- 💧 IP65 Waterproof Design: Fully sealed enclosure allows submersion without performance loss
- ⚡ Capacitive Sensing: No exposed electrodes — prevents corrosion and extends lifespan
- 🛡️ Corrosion-resistant & Scratch-proof: Built for long-term outdoor use
- 📈 Stable Analog Output: Easy to integrate with microcontrollers
- 🌱 Perfect for: balcony gardens, greenhouses, smart farms, and environmental science projects

🌧️ Fully Waterproof & Built for Harsh Environments
Unlike many soil sensors, this model is completely waterproof, ensuring accurate readings even in wet or submerged conditions. Whether placed in a rain-soaked garden or an automated irrigation system, it delivers consistent, reliable data.
🛠️ Long-Lasting & Corrosion-Free
Thanks to capacitive sensing, the sensor avoids direct contact between electrodes and soil, eliminating electrochemical corrosion. It’s engineered for long-term soil monitoring without degradation.
🚀 Applications
- 🌾 Outdoor smart irrigation systems
- 🏡 Greenhouse automation
- 🌿 Balcony and indoor plant care
- 🔬 Soil analysis in research labs
- 🧪 DIY watering systems and science experiments
📘 For more guidance, check out our article on How to Select the Best Soil Moisture Sensors for agriculture and research.
📊 Specifications
- 🔋 Supply Voltage: 3.3V – 5.5V DC
- 🔌 Interface: 2.54mm 3-pin header
- 📤 Output Voltage: 0 – 3V DC (analog)
- 📏 Cable Length: 1.5 meters
- 📐 Dimensions: 175mm × 30mm (6.89 × 1.18 inches)
🌟 Featured Project
DIY Plant Watering Device – "Saving Plants"
💡 Learn how to build an automatic watering system to prevent plants from drying out. A perfect beginner-friendly project using this capacitive soil moisture sensor.
📚 Documents
📦 Package Includes
- 1 × Analog Waterproof Capacitive Soil Moisture Sensor
- 4 × Waterproof Labels

1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
- Shipping addresses must be entered in English without special symbols to help the courier company recognize your address in the system. We will ship strictly according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
- Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
- We can ship all in-stock orders within 1 business day after your order has been confirmed.
- All items are inspected before dispatch and are carefully hand-packed.
- With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
🚀 Need Faster Shipping?
If you require expedited shipping (Express), please contact our customer support team at info@openelab.io for a customized quote tailored to your location.
2. Shipping Rates & Options
Our shipping rates are calculated based on the order value and destination. Please refer to the tables below for details.
2.1 Germany (Domestic)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 European Union (EU)*
*Including:
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0 - €100.00 | €7.95 | 5-9 Business Days |
| Deutsche Post | Over €100.00 | Free | 5-9 Business Days |
|
DHL Paket (Faster Delivery) |
€0 - €100.00 | €15.95 | 3-7 Business Days |
|
DHL Paket (Faster Delivery) |
€100.00 - €250.00 | €7.95 | 3-7 Business Days |
|
DHL Paket (Faster Delivery) |
Over €250.00 | Free | 3-7 Business Days |
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0 - €45.00 | €5.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
* The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and all U.S. Armed Forces addresses. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.
2.4 International (Outside EU)
For specific international destinations, including Switzerland, United Kingdom, and Norway.
| Order Amount | Shipping Cost |
|---|---|
| €0 - €300.00 | €19.95 |
| Over €300.00 | Free |
Important Notice:
- Inventory Status: Please check the inventory status on the product page. Our system displays real-time stock for our Munich and Long Beach warehouses. If an item is out of stock in these locations, it will be marked as "Pre-order". You can still place an order for these items.
- Pre-order Fulfillment: For "Pre-order" items, we arrange the most efficient logistics solution to ensure you receive your goods as quickly as possible. Your package may be shipped directly from our Shenzhen warehouse. Alternatively, as part of our standard restocking process, we may transport the goods to our Munich or Long Beach warehouse first (typically taking 5-10 business days) before dispatching them to you.
- Split Shipments: If your order contains both in-stock and Pre-order items, we will prioritize shipping the in-stock items from the local warehouse immediately. The remaining Pre-order items will be sent to you in a separate shipment once they are ready.
3. International Warehouse
Our products are stored in our Munich, Long Beach, and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.
3.1 German Warehouse
For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.
3.2 US Warehouse
For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.
3.3 Chinese Warehouse
For Pre-order items or orders fulfilled directly from our Shenzhen warehouse, we utilize YunExpress for reliable international shipping. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, products will be restocked to our Munich or US warehouses before final delivery, as detailed in the "Important Notice" above.
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
For EU Member States: Whether shipped from Germany or China, we cover all import duties and taxes (DDP), ensuring that you receive your package without any additional costs or hassle with customs.
For countries outside of the European Union, such as Switzerland and Norway, you may be subject to import duties, taxes, and/or customs fees charged upon delivery. These fees vary from country to country and are the sole responsibility of the recipient.
⚠️ Refusal of Delivery: If you refuse to pay these fees upon delivery and the package is returned to us, the refund amount will be calculated after deducting the original shipping costs, return shipping costs, and any applicable customs or storage fees.
4.2 How is VAT charged when the Customer places an order from OpenELAB?
In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT at checkout. The standard rate of actual VAT applied is subject to the destination country's regulations. No additional VAT will be charged upon delivery for these orders.



