A02YYUW Waterproof Ultrasonic Sensor
4 IN STOCK (More can be backordered)
4 IN STOCK (More can be backordered)
4 IN STOCK (More can be backordered)
4 IN STOCK (More can be backordered)
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3 IN STOCK (More can be backordered)
Delivery & Return Rules
Same-Day Delivery for ISB/RWP
Policy: Orders placed before 3:00 PM for delivery within Islamabad/Rawalpindi will be delivered the same day. Orders placed after this time will be delivered the next business day.
Quick Returns
Explanation: We aim for a smooth return experience.
Policy: Returned items will be processed within 3–5 business days of receiving the item, and you will be notified once the return is approved.
Exchange for Misquoted Items
Explanation: We take full responsibility for product listing accuracy.
Policy: If the item you received is significantly different from its description or image, you can request an exchange.
Wrong or Damaged Products
Explanation: We ensure product quality and accurate shipping.
Policy: If you receive an incorrect product or one that is damaged during shipment, you are eligible for a free exchange.
Complete Package Assurance
Explanation: Your order should arrive complete and in perfect form.
Policy: If any accessory, component, or part is missing from the package, we will ship the missing parts after confirmation.
Video Proof of the Items
Explanation: Helps verify the condition of the product upon delivery.
Policy:Â An unboxing video is mandatory at the time of opening the package. The video must clearly show the sealed package being opened, the product, and all included components. This is required for any claims related to:
- Missing items
- Damaged products
- Wrong deliveries
Without this video proof, we will not be able to process returns or exchanges.
No Warranty for Electronic Products
Explanation: Most electronic items are sold as-is and cannot be returned once used.
Policy: Electronic products are not covered under warranty. We recommend testing the item as soon as you receive it. Exchanges are only allowed if the product is damaged on arrival or incorrectly delivered.
Return Request Timing
Explanation: We operate within a strict return window.
Policy: All return/exchange requests must be submitted within 10 days (local orders) and 20 days (bulk orders) from the invoice date.
Online Return Requests Only
Explanation: Streamlined and trackable process.
Policy: All return and exchange requests must be raised through our official website.
Proof of Purchase Required
Explanation: Ensures authenticity of your claim.
Policy: A copy of your invoice or order confirmation is required for any return, exchange, or or claim.
Order Cancellation Policy
Policy: Only those orders that are still in processing or have not yet been shipped are eligible for cancellation.Â
Explanation: Once an order has been shipped, it cannot be canceled under any circumstances. If your order is still in the processing stage or has not yet been dispatched, you may request a cancellation.
TECHNICAL DOCUMENTATION FILES
Introduction
The A02YYUW Waterproof Ultrasonic Sensor is a reliable, high-performance ranging module designed specifically for makers and smart home enthusiasts. This IP67-rated sensor delivers stable distance measurements from 3cm to 450cm, even in harsh, humid environments. Featuring a tiny 3cm blind spot and a simple UART interface, it’s the perfect non-contact level sensor for DIY projects like water tank monitors, automatic plant watering systems, or smart trash cans. The ranging module seamlessly integrates with Arduino, ESP32, Raspberry Pi, and enjoys support for ESPHome, making Home Assistant automations easier than ever.
True IP67 Waterproofing for Long-Term Stability
Humidity can ruin a project. Unlike sensors with exposed circuit boards (like the HC-SR04) or inconvenient split designs (JSN-SR04T), the A02YYUW ultrasonic distance sensor features a fully sealed, integrated body. Its IP67 waterproof rating means it can withstand dust, splashes, and even temporary submersion. This robust design ensures stable, reliable data output over the long term, making it the ideal choice for outdoor applications or continuous liquid level monitoring.
IP67 Waterproof A02YYUW Ultrasonic Sensor
Measure What Matters: The 3cm Ultra-Small Blind Spot Advantage
When monitoring a tank, every centimeter counts. The JSN-SR04T, has a massive 20cm blind spot, making it impossible to detect when a tank is nearly full.
The A02YYUW sonar sensor solves this with an industry-leading 3cm blind spot. This allows for accurate distance readings right up to the top, providing precise control over water levels and preventing overflows in automated systems.
A02YYUW Waterproof Ultrasonic Sensor features 3cm Blind Spot
Beam Directionalities Diagram
Smart Home Simplified: ESPHome & Home Assistant Ready
Bring smart home projects to life with unparalleled ease. The A02YYUW home assistant distance sensor is compatible with ESPHome, allowing integration into a Home Assistant dashboard. Build powerful automations without the struggle of complex programming. Whether it’s a sump pump monitor or a pet water bowl auto-filler, this ultrasonic distance sensor is the perfect non-contact water level sensor for smart home ecosystem.
A02YYUW Waterproof Ultrasonic Sensor compatible with ESPHome & HomeAssistant
Maker-Friendly & Versatile for All Projects
This ultrasonic distance detection sensor is designed with the DIY community in mind. It operates on a flexible 3.3V-5V power supply and communicates via a standard UART serial port, making it incredibly easy to connect to any microcontroller. It’s fully compatible with popular platforms like Arduino, ESP32, and Raspberry Pi. A connection cable is included, allowing projects to be up and running in minutes, not hours.
A02YYUW Waterproof Ultrasonic Sensor compatible with Arduino / ESP32 / Raspberry Pi
Applications
- Smart Plant Watering System: Monitor the reservoir level and automatically trigger a water pump.
- Water Tank Level Monitor: Get real-time water volume data from a home water tank or rain barrel.
- Aquarium / Fish Tank Automation: Create an auto top-off system to prevent low water levels.
- Smart Trash Can: Detect if the trash can is full and needs to be emptied.
Specification
- Working Voltage: 3.3V – 5V
- Average Current: ≤ 8mA
- Blind Spot Distance: 3 cm
- Detection Range: 3 cm – 450 cm
- Output Interface: UART Serial Port
- Response Time: 100 ms
- Operating Temperature: -15°C to 60°C
- Waterproof Level: IP67
- Measurement Accuracy: ±1 cm
- Reference Angle: 60°
Package Includes
- A02YYUW Waterproof Ultrasonic Sensor x1
- PH2.0-4P Connector x1
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