JSN-SR04T Waterproof Ultrasonic Sensor Module

The JSN-SR04T Waterproof Ultrasonic Sensor Module is a reliable distance measurement sensor designed for Arduino, ESP32, Raspberry Pi and other microcontroller projects. It works like the popular HC-SR04 ultrasonic sensor but comes with a waterproof probe, making it better suited for water level monitoring, outdoor measurement and harsh environment applications.

This sensor is commonly used in smart dustbins, automatic water tank monitoring systems, robotics, obstacle detection, liquid level measurement, parking assist systems and IoT-based monitoring projects. The separate waterproof probe allows the sensing head to be placed near water, tanks or outdoor surfaces while the control board remains protected inside an enclosure.

For students, STEM facilitators, electronics hobbyists and project builders, the JSN-SR04T is a good choice for learning non-contact distance measurement. It can detect objects without physical contact and can be easily connected to Arduino or ESP32 using trigger and echo pins.

The module is especially useful for projects where a normal HC-SR04 sensor may fail due to moisture exposure. It is suitable for water tank level projects, smart irrigation systems, flood level monitoring, outdoor automation and embedded distance sensing applications.

Key Features:

• Waterproof ultrasonic sensing probe
• Suitable for Arduino, ESP32 and Raspberry Pi projects
• Ideal for water level monitoring
• Good for outdoor and moisture-prone projects
• Non-contact distance measurement
• Separate probe and control board design
• Suitable for smart dustbin systems
• Works well for robotics and obstacle detection
• Easy to interface with microcontrollers
• Useful for STEM and school electronics projects

Technical Specifications:

• Sensor Type: Waterproof ultrasonic distance sensor
• Model: JSN-SR04T
• Operating Voltage: 5V DC
• Measuring Range: approximately 20cm to 450cm or more, depending on version
• Ultrasonic Frequency: 40kHz
• Interface: Trigger and Echo
• Probe Type: Waterproof ultrasonic transducer
• Cable Length: approximately 2.5m
• Compatible Boards: Arduino, ESP32, Raspberry Pi and other microcontrollers
• Application: Distance measurement and level sensing

Pin Description:

• VCC: 5V power supply
• GND: Ground
• TRIG: Trigger input pin
• ECHO: Echo output pin

Applications:

• Water tank level monitoring
• Smart dustbin projects
• Automatic water level systems
• Smart irrigation projects
• Outdoor distance measurement
• Obstacle detection
• Robotics projects
• Parking assist systems
• Flood level monitoring
• IoT monitoring systems
• STEM and school practical projects
• Arduino and ESP32 automation projects

Recommended For:

• Arduino water level projects
• ESP32 IoT monitoring systems
• Smart dustbin prototypes
• Automatic water tank controllers
• Outdoor sensor projects
• Robotics and obstacle detection
• STEM project work
• Final year electronics projects

Important Note:
Only the ultrasonic probe is waterproof. The control board is not waterproof and should be placed inside a protected enclosure when used outdoors or near water.