JSN SR20 Y1 Ultrasonic Ranging Sensor JESSINIE 2-500cm Waterproof

Description

Product Overview

The JSN-SR20-Y1 ultrasonic ranging sensor is engineered by JESSINIE to deliver precise, non-contact distance measurement across a wide span of 2 cm to 500 cm. Its core consists of a high‑performance ultrasonic transducer that is both waterproof and dustproof, allowing it to operate reliably in harsh industrial environments where moisture, dust, and temperature fluctuations are common. The module incorporates dual‑wire probes that simplify wiring and improve signal stability, while the integrated processor handles echo timing with high accuracy, ensuring consistent readings over the full measurement range.

Designed with durability in mind, the sensor housing is constructed from robust polymer material that meets IP67 standards, providing protection against water ingress and particulate intrusion. The compact dimensions of 1.89 x 0.91 x 0.39 inches make it easy to mount on a variety of panels, enclosures, or robotic arms without compromising space constraints. Power consumption is optimized for low‑voltage operation, making it suitable for battery‑powered applications as well as mains‑connected systems.

Compatibility is a key strength of the JSN‑SR20‑Y1. It supports multiple output modes, including analog voltage, PWM, and serial UART, allowing seamless integration with any microcontroller unit (MCU) or development board on the market. The module’s default mode 0 mirrors the popular HC‑SR04 protocol, enabling straightforward replacement or upgrade without software changes. Detailed technical specifications, such as operating voltage (5 V), measurement accuracy (±1 cm), and response time (≤100 ms), are provided in the product datasheet for engineers seeking precise performance data.

Usage

In industrial automation, the JSN‑SR20‑Y1 excels at level detection for tanks, silos, and hoppers where contact‑based sensors may suffer from wear or contamination. Its waterproof and dustproof design ensures reliable operation even when measuring liquids with foam or particulate matter. The sensor can be mounted above the material surface to continuously monitor fill levels, triggering alarms or controlling pumps when thresholds are reached.

Robotics applications benefit from the sensor’s fast response and wide range. Autonomous mobile robots use the module for obstacle avoidance, wall following, and docking procedures, relying on the non‑contact measurement to navigate tight spaces without risking collisions. The dual‑wire probe configuration simplifies wiring in compact robot chassis, and the multiple output options allow direct interfacing with popular robot control platforms such as Arduino, Raspberry Pi, and STM32.

Safety systems also leverage the JSN‑SR20‑Y1 for proximity detection in machinery guarding. By placing the sensor near moving parts, engineers can create safety zones that shut down equipment if an object or person enters a hazardous area. The sensor’s ability to operate in dusty or wet conditions makes it suitable for factory floors, outdoor installations, and marine environments where traditional optical sensors may fail.

Why Choose Us

JESSINIE’s reputation for quality and reliability is reflected in the rigorous testing each JSN‑SR20‑Y1 unit undergoes before leaving the factory. Components are selected for long service life, and the ultrasonic transducer is calibrated to maintain accuracy over thousands of operating cycles. This commitment to durability reduces total cost of ownership by minimizing replacement frequency and downtime.

Our customer support team provides comprehensive technical assistance, from initial integration guidance to troubleshooting and firmware updates. Users receive detailed documentation, including wiring diagrams, example code for popular MCU platforms, and a full FAQ that addresses common implementation challenges. In addition, a one‑year limited warranty covers manufacturing defects, giving buyers confidence in the product’s long‑term performance.

Beyond the hardware, JESSINIE offers optional accessories such as mounting brackets, protective enclosures, and cable assemblies that further simplify installation. These accessories are engineered to match the sensor’s IP rating, ensuring the entire system remains sealed against environmental hazards. By choosing the JSN‑SR20‑Y1, customers gain a complete solution that combines high‑quality components, extensive support, and flexible integration options.

Key Features

• Wide measurement range of 2 cm to 500 cm provides flexibility for many applications
• Waterproof and dustproof construction meets IP67 standards for harsh environments
• Dual‑wire probes simplify wiring and improve signal stability
• Multiple output modes (analog, PWM, UART) enable easy integration with any MCU
• Comes with dedicated technical support and a one‑year warranty for peace of mind

FAQ

What is the minimum and maximum distance the sensor can measure?

The JSN‑SR20‑Y1 reliably measures distances from 2 cm up to 500 cm. Accuracy is within ±1 cm across the entire range, making it suitable for both short‑range proximity detection and long‑range level monitoring.

Is the sensor safe to use in wet or dusty environments?

Yes. The sensor housing is rated IP67, which means it is fully protected against dust ingress and can withstand immersion in water up to 1 meter for short periods. This makes it ideal for outdoor installations, water tanks, and dusty factory floors.

Can the sensor be connected to any microcontroller?

Absolutely. The module supports analog voltage, PWM, and UART output formats. Its default mode mimics the HC‑SR04 protocol, so existing code for that sensor can be reused without modification. Compatibility with Arduino, Raspberry Pi, STM32, and other popular platforms is documented in the provided user guide.

How does the sensor handle temperature variations?

The ultrasonic transducer is calibrated to compensate for temperature changes within the typical industrial range of –10 °C to +60 °C. The built‑in processor adjusts the speed of sound based on the measured temperature, maintaining consistent distance accuracy.

What warranty and support are included with the product?

Each JSN‑SR20‑Y1 comes with a one‑year limited warranty covering manufacturing defects. JESSINIE’s technical support team is available to assist with integration, troubleshooting, and firmware updates throughout the warranty period and beyond.