Seeed Studio XIAO Soil Moisture Sensor
Pre-order
Free Shipping from 30€ in Germany, 50€ in the EU!
- Pre-orders will be shipped in 5 working days.
- EU & US Countries Delivery Time: 10 working days.
- Other Countries Delivery Time: 15 working days.
- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished. For specific delivery times, please feel free to contact us for inquiries.
- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.
Seeed Studio XIAO Soil Moisture Sensor
🌱 Effortless Plant Monitoring with XIAO ESP32-C6! Keep your green friends thriving with the 🌿 Soil Moisture Sensor powered by the ⚡️ ultra-efficient XIAO ESP32-C6. 🔋 Runs on a single AA battery for long-lasting, low-power operation. 🏡 Seamlessly integrates with Home Assistant, giving you real-time updates on your soil’s condition.
✅ Smart
✅ Efficient
✅ Reliable
💚 Perfect for plant lovers, hobbyists, and automation enthusiasts!
Feature
Note:
Early Build provides beta products (featuring 3D-printed cases) and evolving software before final release. We welcome your feedback and suggestions to shape the product's evolution. Enjoy exploring!

Comprehensive Three-Level Soil Moisture Monitoring and Alert System
-
✅ Normal Soil moisture is optimal—no watering needed. Your plants are happy! 🌱
-
⚠️ Almost Dry Moisture levels are dropping. Get ready to water soon! 💧
-
🚨 Dry Critically low moisture detected. Time to water immediately! 🪣

Native ESPHome & Home Assistant Integration
🔌 Plug & Play Smart Integration Pre-loaded with ⚙️ ESPHome firmware, the 🌟 XIAO ESP32-C6 enables instant compatibility with 🏡 Home Assistant. 📲 Configure and control your device directly from the Home Assistant dashboard—no coding required! Enjoy seamless smart home management that’s fast, efficient, and user-friendly. 💡

Pre-Calibrated Adaptive Soil Moisture Sensing: Dynamic Monitoring Intervals with Instant Readout
🌱 Smart Soil Monitoring Made Simple
🔧 Factory-Calibrated Plug-and-Play No setup required! The sensor arrives pre-calibrated—just insert it into the soil and start receiving moisture updates instantly. 🪴📦
📊 Adaptive Detection Logic
The sensor intelligently adjusts its monitoring frequency based on soil moisture levels:
-
✅ Normal Moisture is optimal. Sensor checks every 8 hours to ensure your plant stays happy with minimal intervention. 🌿
-
⚠️ Almost Dry Moisture is declining. Sensor increases checks to once per hour, giving you a heads-up to prepare for watering. 💧
-
🚨 Dry Moisture is critically low. Sensor checks every 15 minutes for rapid alerts—time to water! 🪣🌵
🔘 Instant Readout Feature
Need a quick check? Just press the built-in button for a 1-second humidity display—perfect for real-time feedback anytime. ⏱️👆

Calibration Process for Optimal Accuracy
🔧 Sensor Calibration Guide
🟢 Activation Press the button three times quickly to enter calibration mode. 🔴 The red LED will begin flashing to indicate it's ready.
🌱 Calibration Steps
-
⏱️ Within 10 seconds, insert the sensor into completely dry soil.
-
Wait until the red LED stops flashing, then pause for 3 seconds.
-
The LED will switch to flashing green.
-
⏱️ Within the next 10 seconds, insert the sensor into fully wet soil.
-
Wait until the green LED stops flashing, followed by another 3-second delay.
✅ Calibration Result
-
✅ Success: Two quick green flashes 🌟
-
❌ Failure: Two quick red flashes 🚫

Replaceable AA Battery with Extended Service Life
🔋 Ultra-Efficient Power Management Thanks to optimized, factory-calibrated settings, the sensor delivers continuous operation using just one AA battery—no extra tuning required! ⚙️🌿 Enjoy long-lasting performance with minimal power consumption, ideal for remote or low-maintenance setups. 🪴📡

Environment-Adaptive Design: Anti-Corrosion Technology & Gr aduated Scale
🛡️ Built to Last in Moisture-Rich Environments Engineered with advanced anti-corrosion treatment, this sensor thrives even in humid or wet conditions—delivering long-term durability and stable performance. 🌧️🌿
📏 Precision-Etched Graduated Scale The integrated scale enables accurate alignment with varying root depths, ensuring tailored soil monitoring for everything from shallow herbs to deep-rooted shrubs. 🌱🌳 Perfect for gardeners, growers, and smart green spaces that demand precision and reliability. ✅

Specification
|
Parameter |
Description |
|
MCU |
|
|
Button functions |
Detection Status Calibration Process |
|
RGB LED |
Green: Normal Status Yellow: Almost Dry Status Red: Dry Status |
|
Communication |
Wi-Fi 2.4GHz |
|
Power Supply |
1 x AA |
|
Enclosure |
3D-Printed in Black |
Hardware Overview

Part List
|
XIAO Soil Sensor with 3D-Printed Enclosure (Black) |
1 |
1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
-
Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship 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 as 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.
2. Shipping Options for Germany, EU* countries and US
(For Products in Munich Warehouse, Long Beach Warehouse)
2.1 Orders with a value not exceeding €5:
Shipping Options:
| Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
€6 Arrive in 3-4 Business Days |
€15 Arrive in 5-9 Business Days |
| Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
|
USPS Ground Advantage |
€7.95 Arrive in 3-7 Business Days |
€8.95 Arrive in 5-9 Business Days |
|
UPS Express |
€13.95 Arrive in 2-4 Business Days |
€17.95 Arrive in 3-7 Business Days |
2.2 Shipping options for an order value between €5 and €30 inside Germany, €5 and €50 inside the EU, or €5 and €45 in the U.S.:*
Shipping Options:
| Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
€3.5 Arrive in 3-4 Business Days |
€6 Arrive in 5-9 Business Days |
|
DHL Paket |
€6 Arrive in 2-3 Business Days |
€15 Arrive in 3-7 Business Days |
|
DHL Express |
€14 Arrive in 1-2 Business Day |
€65 Arrive in 2-3 Business Days |
| Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
|
USPS Ground Advantage |
€4.95 Arrive in 3-7 Business Days |
€6.95 Arrive in 5-9 Business Days |
|
UPS Express |
€11.95 Arrive in 2-4 Business Days |
€13.95 Arrive in 3-7 Business Days |
2.3 Free shipping options for an order value of above €30 inside Germany, €50 inside the EU* or €45 in US :
| Free Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
Free Above €30 | Free Above €50 |
|
DHL Paket |
+ €2 for Above €30 / Free Above €60 | + €8 for Above €50 / Free Above €80 |
|
DHL Express |
+ €10 for Above €30 | + €60 for Above €50 |
| Free Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
|
USPS Ground Advantage |
Free above €45 | Free above €60 |
|
UPS Express |
+ € 8.95 for Above €45 | + € 11.95 for Above €45 |
-
Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
- 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, the Armed Forces of America, the Armed Forces in Europe, the Armed Forces in the Pacific, and the U.S. outlying islands. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.
2.4 Shipping Options for International Countries:
(via Deutsche Post or YunExpress)
| Order Amount | International |
|---|---|
| €0 - €15 | €8 |
| €15 - €30 | €7 |
| €30 - €50 | €6 |
| €50 and above | €4 |
Important Notice:
- Please verify the inventory location on the product page before placing your order to confirm delivery timeframes.
- For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse or Long Beach warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich/ Long Beach, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
- If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.
3. International Warehouse
3.1 German Warehouse
3.2 US Warehouse
3.3 Chinese Warehouse
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
4.2 How is VAT charged when the Customer places an order from OpenELAB?
4.3 What kind of fee will be charged except VAT?
Effective Date: December 10, 2025
At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.
1. Warranty Policy
A. Standard Limited Warranty (Global & US)
For customers in the United States, Asia, and other non-EU regions:
-
Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.
-
Coverage: This warranty covers defects in material and workmanship under normal use.
-
Resolution: We will repair or replace defective units at no charge.
B. Statutory Rights for EU/UK Customers (EU Compliance)
If you are a consumer residing in the European Union or the UK purchasing from our global site:
-
Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.
-
Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.
C. Warranty Exclusions (Applies to ALL Regions)
Warranty coverage is VOID if the damage is caused by:
-
Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.
-
Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.
-
Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).
-
Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.
Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.
2. Return & Refund Policy
A. Return Window
-
Standard: You may request a return within 30 days of receiving your order.
-
EU Customers: You have the statutory right to withdraw from the contract within 14 days of receipt without giving a reason.
B. Refund Conditions & Restocking Fees
To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.
1. Full Refund (100%)
-
The item is Brand New, Unopened, and Unused.
-
The original packaging is intact and sealed.
-
All accessories are present.
2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:
-
Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.
-
Damaged Packaging: Original box is torn, written on, or missing.
-
Technical Modification: The device has been powered on, programmed/flashed, or soldered.
-
Broken Seals: Anti-static bags or security seals have been opened.
Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.
C. Shipping Costs
-
Defective / Wrong Item: OpenELAB covers the return shipping cost.
-
Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.
3. Return Process (RMA)
To ensure a smooth return process, please follow these steps:
-
Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.
-
RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.
-
Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).
-
Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.







