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Waterproof Ultrasonic Sensor

Waterproof Ultrasonic Sensor

â‚ą269.00Price
🔊 What Is a Waterproof Ultrasonic Sensor?
  • A waterproof ultrasonic sensor is a distance measuring device that uses ultrasonic sound waves (typically 40 kHz) to detect objects without contact.
  • The core principle: it sends ultrasonic pulses and measures the time it takes for echoes to return, then calculates the distance using the speed of sound.
  • Unlike standard hobby ultrasonic modules (like HC‑SR04), waterproof sensors have sealed or enclosed transducer heads, allowing use in wet, dusty, or outdoor environments.
đź“Ś Key Features
✔ Waterproof/Weather‑Resistant: Sensor heads often meet IP66/IP67 levels, enabling operation in rain or splashes (not necessarily full immersion of electronics).
✔ Wide Detection Range: Typical range from 20 cm up to 4.5 m or 6 m, depending on model.
✔ 40 kHz Ultrasonic Frequency: Standard frequency for reliable sonar distance measurement.
✔ Digital Interface: Uses Trig and Echo control pins just like HC‑SR04 (easy to interface with Arduino, ESP32, Raspberry Pi, etc.).
✔ Low Power / Low Voltage: Works around 3–5 VDC, suitable for most microcontrollers.
✔ Anti‑Interference & Stability: Designed for stable readings even in harsh conditions (dust/water).
🧠 How It Works
  • Microcontroller sends a Trigger pulse (usually ≥10 µs).
  • Sensor emits ultrasonic sound waves via a transducer.
  • Sound reflects off objects and returns as an echo.
  • The Echo pin outputs a pulse whose width corresponds to the round‑trip travel time.
  • Distance is calculated using the time and speed of sound.
đź“‹ Typical Specifications (General)
  • Operating Voltage: ~5 V DC (some can work ~3 V to 5 V).
  • Distance Range: ~20 cm to ~600 cm or more (varies by model).
  • Frequency: 40 kHz ultrasonic waves.
  • Accuracy: ~±1 cm typical.
  • Operating Temperature: ~‑20 °C to +70 °C (varies).
  • Interface: Digital Trig/Echo pins.
🧰 Common Uses & Applications
  • Water level measurement (tanks, reservoirs).
  • Outdoor distance sensing (gate detection, parking).
  • Obstacle avoidance in robots (especially outdoor robots).
  • Industrial control (proximity and automation).
  • Security systems (presence detection, barriers).
 
🔎 Highlights
  • JSN‑SR04T V3.0 Waterproof Ultrasonic Sensor Module – Highly popular and affordable waterproof distance sensor for Arduino/ESP32.
  • JSN‑SR04T Waterproof Ultrasonic Sensor – Standard waterproof sonar sensor with many reviews.
  • Robocraze Waterproof Ultrasonic Distance Transducer – Reliable module for outdoor projects.
  • A02YYUW Waterproof Ultrasonic Sensor – Better sealed and higher‑end option with robust performance.
  • DFRobot ME007YS Waterproof Ultrasonic Sensor – Industrial‑grade waterproof sensor with UART output.
  • Waterproof Ultrasonic Sensor Module without Probe, Waterproof Ultrasonic Obstacle Distance Sensor Module, Waterproof UltraSonic Sensor – Other compact and budget‑friendly waterproof ultrasonic options.
⚠️ Tips for Best Results
  • Common Ground: Always connect sensor and microcontroller grounds.
  • Avoid Dead Zone: Most waterproof ultrasonics have a blind range close to the sensor where it can’t detect.
  • Stable Mounting: Mount perpendicular to measurement surface for accurate readings.
  • Power Supply: Use stable 5 V power for reliable triggering and echo detection.
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