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Measure Distance with an Ultrasonic Sensor Module
The Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0 is an ultrasonic distance sensor with trig/echo designed for distance measurement, obstacle detection, level checks, and basic automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Measurement range: 25cm-500cm; Working voltage: DC 5V; Interface: UART.
Important: Ultrasonic sensors can struggle with very soft, angled, or very close targets. Keep the face clear and test the mounting angle in the real enclosure.
Why you’ll love it
- Low Voltage, Little Power Use: Low Voltage, Little Power Use
- High Precision: High Precision
- Key feature: Equipped With A Wire-Enclosed Waterproof Probe, Appropriate For Harsh, Wet Measurement Situations
- Current draw: 5mA
- Operating frequency: 40KHz
- Sensing range: 25cm-500cm
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0 | ultrasonic distance sensor with TRIG/ECHO | Current item |
| Waterproof Ultrasonic Ranging JSN-SR04T 2.0 | ultrasonic distance sensor with TRIG/ECHO | waterproof build, ultrasonic ranging |
| Ultrasonic Ranging Sensor HC-SR04 and Bracket For Distance Sensors in Arduino | ultrasonic distance sensor with TRIG/ECHO | ultrasonic ranging |
| Ultrasonic Ranging Sensor URM37 | ultrasonic distance sensor with UART | ultrasonic ranging |
What you can build
This sensor is a good fit for robot obstacle avoidance, tank level checks, parking aids, object counters, and range alarms.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include USB-to-serial tools, level-safe controllers, displays, and data loggers, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0 |
|---|---|
| Static working current | 5mA |
| Acoustic Emission Frequency | 40KHz |
| Measurement range | 25cm-500cm |
| Working voltage | DC 5V |
| Working Current | 30mA |
| Resolution | 5mm |
| Cable | 2.5m |
| Wiring | +5V(positive), Trig(control), Echo(receive), GND(cathode) |
| Interface | UART |
Wiring & usage notes
Connect power and ground, then wire TX and RX to a serial-capable controller at the correct logic level and baud rate. Ultrasonic sensors can struggle with very soft, angled, or very close targets. Keep the face clear and test the mounting angle in the real enclosure.
What’s in the box
1 × Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0
Frequently Asked Questions
What does the Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0 measure?
It is designed to measure distance or object presence.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this UART sensor?
This version uses UART or serial output, so you connect power plus TX and RX at the correct logic level.
What affects accuracy?
Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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