JSN-SR04 Waterproof Ultrasonic Obstacle Sensor Module with Probe (40kHz Distance Measuring Sensor)

The JSN-SR04 Waterproof Ultrasonic Obstacle Sensor Module is a robust distance measurement sensor designed for outdoor, industrial, and wet-environment applications. Operating at 40kHz, it uses ultrasonic pulses to accurately measure the distance between the sensor and nearby objects. The module features a waterproof ultrasonic probe, making it suitable for liquid level monitoring, obstacle detection, robotics, and automation systems. Its simple Trigger and Echo interface enables easy integration with Arduino, ESP32, STM32, Raspberry Pi, and other microcontroller platforms.

Key Features -

• Waterproof ultrasonic probe for harsh environments

• Measures distances from 25cm to 450cm

• 40kHz ultrasonic operating frequency

• Simple Trigger and Echo interface

• Suitable for outdoor and wet environment applications

• Long-range obstacle and distance detection

• Compact control module with external waterproof probe

• Compatible with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers

• Stable and reliable non-contact distance measurement

• Ideal for liquid level monitoring and automation systems

Specifications -

• Product type - Waterproof Ultrasonic Distance Sensor Module

• Model - JSN-SR04

• Operating voltage - 5V DC

• Operating frequency - 40kHz

• Sonar sensing range - 25cm to 450cm

• Maximum sensing range - 450cm

• Output signals - Trigger and Echo

• Measurement method - Ultrasonic Time-of-Flight

• Environmental rating - Waterproof Probe

• Accuracy - Standard Ultrasonic Measurement Resolution

• Package / Mounting type - PCB Module with External Waterproof Probe

Applications -

• Obstacle detection in robotics

• Water tank and liquid level monitoring

• Industrial automation systems

• Smart parking and vehicle detection

• Outdoor distance measurement projects

• Security and intrusion detection systems

• Agricultural automation

• Arduino and IoT sensor applications