DFRobot A02YYUW Waterproof Ultrasonic Sensor
- Product SKU: R0455
- Category: Arduino Ecosystem, ESP32 & NodeMCU Ecosystem, Intermediate Projects, Premium ₹1500+, Sensor Only (Without Module), Sensors, Sensors, Sensors
This is the DFRobot A02YYUW Waterproof Ultrasonic Sensor.
An ultrasonic distance sensor measures the distance to a target by calculating the time it takes for an ultrasonic pulse to travel to the target and back. This high-performance, reliable ultrasonic sensor module is easy to use and features a smaller blind zone, a wider sensing angle, and some penetration capability through smog and dust compared to similar sensors.
The sensor is equipped with a closed, separated probe that is both waterproof and dustproof, making it ideal for use in harsh and humid measuring environments. All signal processing components are integrated within the module, allowing users to directly obtain distance values via an Asynchronous Serial Interface. With a baud rate of 9600 bps, the sensor can easily communicate with a host or other microcontrollers, significantly reducing the development time for users.
Features:-
High performance and reliability
Featuring a much smaller blind zone
Wider sensing angle
Package Includes:-
1 x DFRobot A02YYUW Waterproof Ultrasonic Sensor
This is the DFRobot A02YYUW Waterproof Ultrasonic Sensor.
An ultrasonic distance sensor measures the distance to a target by calculating the time it takes for an ultrasonic pulse to travel to the target and back. This high-performance, reliable ultrasonic sensor module is easy to use and features a smaller blind zone, a wider sensing angle, and some penetration capability through smog and dust compared to similar sensors.
The sensor is equipped with a closed, separated probe that is both waterproof and dustproof, making it ideal for use in harsh and humid measuring environments. All signal processing components are integrated within the module, allowing users to directly obtain distance values via an Asynchronous Serial Interface. With a baud rate of 9600 bps, the sensor can easily communicate with a host or other microcontrollers, significantly reducing the development time for users.
Features:-
High performance and reliability
Featuring a much smaller blind zone
Wider sensing angle
Package Includes:-
1 x DFRobot A02YYUW Waterproof Ultrasonic Sensor
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
- Contact us via email at support@robodium.com or call +91 8123109966
- Provide your order number and reason for return
- Submit photos/videos of the item (especially for damaged/defective products)
- 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
Need Help?
For any return, refund, or warranty questions, contact us:
📞 +91 8123109966 (Mon-Sat, 10 AM - 6 PM IST)
✉️ support@robodium.com
Last updated: January 2026
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