Rain Drop Sensor Module

The Raindrops Detection Sensor Module is designed for detecting rain and measuring rainfall intensity. It can be used for weather monitoring and provides both analog output (AO) and fixed output signals.

This module, compatible with Arduino and similar platforms, allows for the detection of various weather conditions and converts them into output signals and analog data.

The sensor includes a printed circuit board (control board) that collects raindrops. As water accumulates, it forms parallel resistance paths measured by the op-amp. The more water present, the lower the resistance and voltage output. Conversely, a dry board results in higher voltage output, up to 5V when completely dry.

The module consists of a rain detection board and a separate control board for ease of use. It features a power indicator LED and adjustable sensitivity via a potentiometer. The module operates using the LM393 op-amp.

Features:-

• The LM393, use of the wide voltage comparator
• Provide both digital and analog output
• Output LED indicator
• Compatible with Arduino
• TTL Compatible
• The sensor uses the high-quality FR – 04 double material, the large area of 5.5 * 4.0 CM
• Treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance
• The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA;
• With potentiometer sensitivity adjustment
• The output format: digital switch output (0 and 1) and analog AO voltage output;
• Has a fixed bolt hole, convenient installation

Specifications:-

• Operating Voltage (VDC) : 3.3 ~ 5
• Voltage Comparator : LM393

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.

What Can Be Returned

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
• Items with manufacturing defects
• Wrong items received (item mismatch)
• Missing components inside the package

Return Conditions

To be eligible for a return, items must be:

• 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

Return Pickup Process

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.
• Refund Amount: Full purchase price minus any applicable return shipping fees.
• Orders canceled before shipping receive a full refund (minus up to 5% payment gateway charges, if applicable).

Replacements

• Once the returned item is inspected and approved, we ship the replacement at no additional cost.
• 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.

Order Cancellations

• Orders in Pending or Payment Verification status can be canceled for a full refund.
• Contact us immediately at support@robodium.com to cancel before shipping.
• Once an order is shipped, it cannot be canceled but can be returned after delivery.

Customer Service Commitment

• Email Response Time: Within 24 hours on business days
• Phone Support: Monday-Saturday, 10:00 AM - 6:00 PM IST
• Return Request Review: 1-2 business days
• Issue Resolution: Within 48 hours of verification