---
product_id: 64761076
title: "HC-SR04 Ultrasonic Module Distance Measuring Sensor"
brand: "robocraze"
price: "$5.26"
currency: USD
in_stock: true
reviews_count: 8
category: "Robocraze"
url: https://www.desertcart.ec/products/64761076-hc-sr04-ultrasonic-module-distance-measuring-sensor
store_origin: EC
region: Ecuador
---

# 0.3cm ultra-high resolution 2cm-400cm range Non-contact ultrasonic sensing HC-SR04 Ultrasonic Module Distance Measuring Sensor

**Brand:** robocraze
**Price:** $5.26
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your DIY game with precision sensing that’s a cut above the rest!

## Quick Answers

- **What is this?** HC-SR04 Ultrasonic Module Distance Measuring Sensor by robocraze
- **How much does it cost?** $5.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/64761076-hc-sr04-ultrasonic-module-distance-measuring-sensor)

## Best For

- robocraze enthusiasts

## Why This Product

- Trusted robocraze brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pinpoint Precision:** Experience razor-sharp distance measurements from 2cm up to 4 meters—never miss a detail in your robotics or automation projects.
- • **Safe & Contactless:** Harness ultrasonic waves for reliable, non-invasive sensing—perfect for delicate setups and futuristic DIY builds.
- • **Lightweight & Compact:** Sleek 4x2x1 cm design weighing just 12g—engineered to fit effortlessly into any project without bulk.
- • **Ultra-High Resolution:** Get crystal-clear 0.3cm accuracy that empowers your smart devices with next-level obstacle detection and environment mapping.
- • **Plug & Play Compatibility:** Seamlessly integrates with Arduino, Raspberry Pi, and all your favorite microcontrollers for rapid prototyping and innovation.

## Overview

The Robocraze HC-SR04 Ultrasonic Module is a compact, 5V-powered distance sensor delivering highly accurate measurements from 2cm to 400cm with 0.3cm resolution. Utilizing non-contact ultrasonic technology, it ensures safe and reliable distance detection, making it ideal for robotics, automation, and embedded electronics projects. Compatible with popular microcontrollers like Arduino and Raspberry Pi, this lightweight sensor is a top choice for professionals and hobbyists aiming to build smarter, more responsive systems.

## Description

Robocraze HC-SR04 Ultrasonic Module Distance Measuring Sensor | 5V Non-Contact Distance Sensor with 0.3cm Resolution for Arduino, Robotics and Automation Systems : desertcart.in: Industrial & Scientific

Review: Very nice and reliable product - Very nice and reliable product High accuracy rate of sensor and value for money and best durability
Review: Works well, nothing special as such - I purchased 2 qty of these modules for making a level sensor. I created an application to read the sensor data, convert it to distance and show it on PC COM Port. Initially, the sensor did not show any data and it was all zero's everytime. I checked the supply, signal connections and verified the software which was all good. After struggling for close to 3 hours, I figured out that the Trigger signal for the sensor is Active Low instead of Active High as suggested everywhere in forums and datasheets. As soon as I made the Trigger signal active Low, voila.... it started giving distance values which were almost close to real measurement. There was a deviation of about 2-4mm but it was Ok for my application. I was not able to install it and use it extensively now to check its long term stability, but initial reviews are good. PCB is of reasonable quality with nothing much to talk about. I am not clear on how to encapsulate this sensor in a sealed enclosure to avoid it from the vapors of the liquid I am planning to install with, since due to changes in ambient temperature, vapors will stick to the sensor grill in front thus reducing its accuracy and lifetime.

## Features

- ACCURATE DISTANCE MEASUREMENT: Measures distances from 2cm to 400cm with high precision and reliable performance.
- 0.3CM HIGH RESOLUTION: Provides detailed distance readings suitable for robotics, automation, and obstacle detection applications.
- NON-CONTACT SONAR TECHNOLOGY: Uses ultrasonic waves for safe and accurate distance sensing without physical contact.
- 5V DC OPERATING VOLTAGE: Compatible with Arduino, Raspberry Pi, and various microcontroller development platforms.
- IDEAL FOR DIY AND ROBOTICS PROJECTS: Suitable for obstacle avoidance, smart automation, distance measurement, and embedded electronics applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01I1ZTPJC |
| Are batteries included? | No |
| Best Sellers Rank | #355 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Ultrasonic Proximity Sensors |
| Brand | Robocraze |
| Colour | Silver |
| Country of Origin | India |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,237) |
| Date First Available | 26 September 2014 |
| Generic Name | ROBOTICS COMPONENT |
| Imported By | GALAXY GIFTS AND NOVELTIES HOUSE NO. 8754 GALI NO. 14B KAROL BAGH SIDHIPURA DELHI - 110005 mo.-8989713950 |
| Importer | GALAXY GIFTS AND NOVELTIES HOUSE NO. 8754 GALI NO. 14B KAROL BAGH SIDHIPURA DELHI - 110005 mo.-8989713950 |
| Included Components | ULTRASONIC SENSOR |
| Item Dimensions LxWxH | 40 x 20 x 10 Millimeters |
| Item Height | 1 Centimeters |
| Item Weight | 12 g |
| Item Width | 2 Centimeters |
| Item model number | SE184 |
| Manufacturer | Sound Land Corp, Sound Land Corp. No.32.Keji 1st Rd.,Guishan Township,Taoyuan County 33383 Ph- 886-3-396-1958 Taiwan R. O. C. |
| Model number | SE184 |
| Net Quantity | 1 Count |
| Number of Memory Sticks | 1 |
| Packer | Sound Land Corp. No.32.Keji 1st Rd.,Guishan Township,Taoyuan County 33383 Ph- 886-3-396-1958 Taiwan R. O. C. |
| Product Dimensions | 4 x 2 x 1 cm; 12 g |

## Images

![HC-SR04 Ultrasonic Module Distance Measuring Sensor - Image 1](https://m.media-amazon.com/images/I/61AeSHBSvHL.jpg)

## Questions & Answers

**Q: Is it compatible with arduino uno r3**
A: yes it is compatible with arduino uno 3

**Q: Is it compatible with arduino uno r3**
A: Yes, its fully compatible with arduino uno r3. I have myself used it with uno r3. No problem.Use digital pins for trig and echo and it works well

**Q: it works with on 10 cm range**
A: hi naveen it works with the range from 2cm to 3metres

**Q: I bought it same for rs 45 less**
A: If it works good then everything is good ☺️☺️☺️.👍

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very nice and reliable product
*by S***A on 2 November 2026*

Very nice and reliable product High accuracy rate of sensor and value for money and best durability

### ⭐⭐⭐⭐ Works well, nothing special as such
*by G***S on 1 December 2016*

I purchased 2 qty of these modules for making a level sensor. I created an application to read the sensor data, convert it to distance and show it on PC COM Port. Initially, the sensor did not show any data and it was all zero's everytime. I checked the supply, signal connections and verified the software which was all good. After struggling for close to 3 hours, I figured out that the Trigger signal for the sensor is Active Low instead of Active High as suggested everywhere in forums and datasheets. As soon as I made the Trigger signal active Low, voila.... it started giving distance values which were almost close to real measurement. There was a deviation of about 2-4mm but it was Ok for my application. I was not able to install it and use it extensively now to check its long term stability, but initial reviews are good. PCB is of reasonable quality with nothing much to talk about. I am not clear on how to encapsulate this sensor in a sealed enclosure to avoid it from the vapors of the liquid I am planning to install with, since due to changes in ambient temperature, vapors will stick to the sensor grill in front thus reducing its accuracy and lifetime.

### ⭐⭐⭐⭐⭐ Nice
*by R***A on 4 August 2026*

Working good

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-11-09*