A02YYUW Waterproof Ultrasonic Sensor (IP67, 3~450cm,UART)

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 native support for ESPHome, making Home Assistant automations easier than ever.

Features

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°