Soil Moisture Sensor Module

This digital soil moisture sensor is user-friendly and easy to operate. Simply insert the sensor into the soil to measure its moisture or water content. It provides a digital output of 5V when the moisture level is high and 0V when it is low.

The sensor features a potentiometer that allows you to set a desired moisture threshold. If the moisture level exceeds this threshold, the digital output turns high, and an LED lights up to indicate this. Conversely, if the moisture level falls below the threshold, the output remains low. The digital output can be connected to a microcontroller to monitor moisture levels, while the analog output can be linked to the ADC of a microcontroller to obtain precise moisture measurements.

This sensor is ideal for applications such as water gardening and moisture sensing projects.

Specifications:-

• Operating voltage: 3.3V~5V
  

• Dual output mode,analog output more accurate
  

• A fixed bolt hole for easy installation
  

• With power indicator (red) and digital switching output indicator (green)
  

• Having LM393 comparator chip, stable
  

• Panel PCB Dimension: Approx.3cm x 1.5cm
  

• Soil Probe Dimension: Approx. 6cm x 3cm
  

• Cable Length: Approx.21cm
  

• VCC: 3.3V-5V
  

• GND: GND
  

• DO: digital output interface(0 and 1)
  

• AO: analog output interface
  

Connections:-

• VCC  connect to 3.3V-5V
  

• GND  connect to GND
  

• DO   digital value output connector（0 or 1）
  

• AO  analog value output connector
  

Usage:-

• Soil moisture module is most sensitive to the ambient, generally used to detect the moisture content of the soil.
  

• When the module can not reach the threshold value, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low;
  

• The small board digital output D0 can be connected directly to the MCU, MCU to detect high and low, to detect soil moisture;
  

• Small board digital output DO can directly drive the buzzer module or relay module in our store, which can form a soil moisture alarm equipment;
  

• Small board analog output AO and AD module connected through the AD converter, you can get more precise values ​​of soil moisture;

Return Policy Overview

At ROBODIUM™, we want you to be completely satisfied with your purchase. You may return most items within 7 days of delivery for a full refund or exchange.

Return Window

• Standard Returns: 7 days from delivery date for any reason, including if you simply changed your mind.
• Defective/Damaged Items: 7 days from delivery date for items received damaged or defective.
• Manufacturing Defects (Warranty): 15 days from delivery for manufacturing defects, unless a different warranty period is specified on the product page.

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Most items sold on ROBODIUM™ can be returned within the return window, including:

• Items you no longer need or changed your mind about
• Products received in damaged condition
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• Missing components inside the package

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• In their original, unused condition
• In the original packaging with all accessories, manuals, and free gifts (if any)
• Accompanied by proof of purchase

Note: Products damaged due to misuse, modification, static discharge, soldering, or improper handling may not be eligible for return.

How to Initiate a Return

1. Contact us via email at support@robodium.com or call +91 8123109966
2. Provide your order number and reason for return
3. Submit photos/videos of the item (especially for damaged/defective products)
4. Our team will review and approve your return request within 1-2 business days

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We arrange the return pickup for you - hassle-free returns similar to major e-commerce platforms.

• Once your return is approved, we will coordinate pickup from your location.
• Pack the product securely in its original packaging.
• Include a copy of the order confirmation or packing list.
• Keep the package ready - our logistics partner will collect it at the scheduled time.

Return Shipping Costs

• Defective, damaged, or wrong items: ROBODIUM™ covers all return shipping costs. No charges to you.
• Change of mind returns: A flat return shipping fee of ₹100 will be deducted from your refund amount.

Refund Process

• Refund Method: Refunds are processed to your original payment method.
• Processing Time: 5-7 business days after we receive and inspect the returned item.
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Replacements

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• Replacement items are dispatched within 2 business days of receiving your return.
• If replacement is unavailable, we provide a full refund.

Warranty Terms

All products include a minimum 15-day warranty against manufacturing defects unless otherwise specified on the product page.

Warranty does not cover: misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.

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• Return Request Review: 1-2 business days
• Issue Resolution: Within 48 hours of verification