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The JSN-SR04T Integrated Waterproof Ultrasonic Distance Measuring Module is an industrial-grade, rugged telemetry solution designed to replace standard open-air ultrasonic sensors like the HC-SR04 in harsh, unpredictable environments. Standard ultrasonic transducers feature exposed mesh grates that rapidly fail when exposed to dust, moisture, condensation, or rain. The JSN-SR04T resolves this critical design flaw by separating the sensitive processing circuitry from the sensing element, using a completely sealed waterproof probe shell that easily withstands outdoor elements and wet industrial applications.

The module operates by emitting high-frequency acoustic pulses that bounce off objects in their path. The onboard processing engine counts the microseconds it takes for the echo to return, outputting a precise time-of-flight pulse width. Because its software register footprint is fully backward-compatible with HC-SR04 code libraries, developers can drop this module straight into existing Arduino, ESP32, or Raspberry Pi firmware architectures without rewriting their baseline timing logic.

Key Features & Benefits:

• Fully Weatherproof Sensing Probe: The sealed industrial transducer head can be safely exposed to heavy rain, splashing water, windblown dust, or liquid condensation.

• Extended 6-Meter Detection Envelope: Reliably maps and measures obstacles from a 20cm blind-zone limit up to an expansive 600cm range with an absolute resolution under 2mm.

• Extra-Long 2.5-Meter Shielded Cable: Pairs the transducer probe with a thick, noise-insulated extension wire, letting you mount the processing board safely inside a sealed control enclosure.

• Low Current Drain Profile: Draws a minimal 30mA active current during a full trigger loop, ensuring compatibility with remote, battery-regulated solar telemetry nodes.

Technical Specifications

How to Use

The JSN-SR04T Waterproof Sensor operates using the time-of-flight (ToF) principle. The control board prompts the probe to emit a high-frequency ultrasonic pulse. This sound wave travels through the air, hits an object, and reflects back. The sensor calculates the time difference between transmission and reception to deduce the exact distance.

Pinout Configuration:

• VCC: Connect to a stable 5V DC power source.

• Trig (Trigger Input): Connect to a digital output pin on your microcontroller. Receives a 10µs high pulse to initiate a measurement cycle.

• Echo (Receiver Output): Connect to a digital input pin on your microcontroller. Outputs a high pulse whose duration corresponds directly to the distance measured.

• GND: Connect to the common system ground rail.

Software Integration Guide:

Because it shares the exact timing architecture of the classic HC-SR04 sensor, you can utilize the standard pulseIn() functions or open-source libraries like NewPing in your development environment:

1. Set the Trig pin HIGH for 10 microseconds, then turn it LOW.

2. Measure the time duration that the Echo pin stays HIGH using your microcontroller.

3. Calculate the distance using the speed of sound formula:

   Distance (in cm) = (Duration (in μs) x 0.034) / 2

Common Applications

Thanks to its durable waterproof probe configuration and impressive 4.5-meter range, this module excels in challenging physical environments:

• Water Level Monitoring: Safely measuring liquid levels inside overhead rainwater tanks, wells, or chemical storage containers without dipping the circuit board into the fluid.

• Outdoor Parking Assistants: Integrated into garage walls or outdoor smart parking lots to detect vehicle presence.

• Agricultural Automation: Mounting onto field tractors or autonomous weeding rovers to serve as outdoor obstacle bumpers.

• Industrial Waste Bin Telemetry: Tracking fill levels inside public trash receptacles or commercial dumpsters for smart city management networks.

• Car Reverse Sensors: Adapting into custom vehicle backup systems to give reliable audio-visual distance countdowns.

Package Includes

• 1 x JSN-SR04T Control Board

• 1 x Integrated Waterproof Ultrasonic Probe with 2.5-Meter Cable

Shipping & Delivery

At Electroboat Technologies, we focus on safe transport and rapid logistics for all your advanced development hardware.

• Free Shipping: Enjoy Free Shipping on all orders above ₹999 across India.

• Dispatch Time: Your order will be carefully packed and dispatched within 1-3 business days.

• Estimated Delivery: Expect your package at your doorstep within 3-7 business days (depending on your specific location).

• Secure Packaging: We use specialized anti-static and cushioned packaging to ensure total safety and safe transit of all your sensitive electronic components.