---
product_id: 510741043
title: "Radiolink SU04 Ultrasonic Sensor"
brand: "radiolink"
price: "R701"
currency: ZAR
in_stock: true
reviews_count: 4
category: "Radiolink"
url: https://www.desertcart.co.za/products/510741043-radiolink-su04-ultrasonic-sensor
store_origin: ZA
region: South Africa
---

# 30 ms lightning-fast response 0.4 cm ultra-precise detection 8-directional obstacle avoidance Radiolink SU04 Ultrasonic Sensor

**Brand:** radiolink
**Price:** R701
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your drone’s IQ with the SU04 — because flying smart is flying safe.

## Quick Answers

- **What is this?** Radiolink SU04 Ultrasonic Sensor by radiolink
- **How much does it cost?** R701 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/510741043-radiolink-su04-ultrasonic-sensor)

## Best For

- radiolink enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Reaction:** Responds in just 30 milliseconds to keep your drone ahead of danger.
- • **Pinpoint Precision:** Detects obstacles as small as 0.4 cm for flawless navigation.
- • **Featherweight Design:** Compact and ultra-light at just 8 grams, perfect for sleek drone builds.
- • **Omni-Directional Safety:** Covers 8 horizontal directions plus vertical altitude hold for total protection.
- • **Plug & Play Compatibility:** Seamlessly integrates with PIXHAWK, Mini PIX, and TURBO PIX controllers via I2C/UART.

## Overview

The Radiolink SU04 ultrasonic sensor is a compact, high-precision obstacle avoidance device designed for drones, multirotors, and other autonomous vehicles. With 0.4 cm detection accuracy, 30 ms response time, and 8-directional sensing, it ensures superior navigation and safety. Lightweight and compatible with popular flight controllers like PIXHAWK, it’s ideal for agriculture, training, and rescue missions.

## Description

desertcart.com: Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, Radiolink Mini PIX and crossflight : Industrial & Scientific

Review: Product As Described & Excellent Customer Service - I have this connected to Radiolink's PX4 Mini and using it in a Plane for Landing and Approach. Had issues with Bad Lidar Health and the customer server representative escalated this issue immediately to their technical department. After a few emails back and forth they provide a firmware update to address the issue. This is awesome especially if you have ever worked with Pixhawk or APM etc.... Good job
Review: Configuration - I am giving a three star since while I finally got it work, this should not be so difficult to configure... Here is the parameters that worked for me on a pixhawk 2.4.8: RNGFND1_TYPE:2 RNGFND1_ADDR: 112 (0x70) I had to run i2c_scanner on an arduino to get the I2C address... This address DID NOT change when I press the button (contradicting the answer from the seller)! But I got it to work now. The performance is as in the spec (min:0.47m, not sure about max yet). The vendor show provide more accurate information on how to configure it.

## Features

- 【Obstacle Avoidance】: SU04 is a transmitting and receiving hybrid ultrasonic sensor, it will help helicopter, multirotor, airplane, car, and boat achieve autonomous obstacle avoidance in 8 directions horizontal, obstacle avoidance to the upward side and altitude hold to the downward.
- 【Small Size and Multifunction】: Single probe only 0.017Lb and 0.78*0.86*0.75in, easy to install on your drone. Obstacle avoidance function can protect your device when the beginner practice fly.
- 【Perfect for】: SU04 ultrasonic sensor can be used on Agriculture, Training, and rescue. Safety Guaranteed for Outdoors Operation and Training. Can work with Helicopter, Multirotor, Airplane, Car, and Boat.
- 【High Accuracy and Low Latency】: Support 0.4cm high detection accuracy, even the smallest obstacles can be accurately captured. Precise positioning without fear of obstacles. Extreme Fast Response, latency as low as 30ms.
- 【Compatible Mode】: SU04 is compatible with RadioLink flight controller PIXHAWK, MINPIX and TURBO PIX with the I2C and UART(MAVlink protocol) automatically identified.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BTHLGRYF |
| Best Sellers Rank | #659,812 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #128 in Ultrasonic Proximity Sensors |
| Brand | Radiolink |
| Brand Name | Radiolink |
| Current Rating | 18 Milliamps |
| Customer Reviews | 3.4 out of 5 stars 17 Reviews |
| Included Components | ultrasonic sensor |
| Item Dimensions | 0.78 x 0.75 x 0.86 inches |
| Item Type Name | Ultrasonic Sensor |
| Item Weight | 8 Grams |
| Item dimensions L x W x H | 0.78 x 0.75 x 0.86 inches |
| Manufacturer | Radiolink |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Supply Voltage | 5.5 Volts |
| Measurement Accuracy | 0.4 cm |
| Measuring Range | 40cm to 450cm |
| Model | SU04 |
| Mounting Type | Flange Mount |
| Output Type | Digital |
| Response Time | 30 Milliseconds |
| Sensing Distance | 450 Centimeters |
| Specific Uses For Product | agriculture, training, rescue |
| Style | ultrasonic sensor |
| Style Name | ultrasonic sensor |

## Product Details

- **Brand:** Radiolink
- **Item Weight:** 8 Grams
- **Item dimensions L x W x H:** 0.78 x 0.75 x 0.86 inches
- **Material:** Plastic
- **Style:** ultrasonic sensor

## Images

![Radiolink SU04 Ultrasonic Sensor - Image 1](https://m.media-amazon.com/images/I/61r1dsfY1XL.jpg)

## Available Options

This product comes in different **Edition** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Product As Described & Excellent Customer Service
*by J***M on May 16, 2019*

I have this connected to Radiolink's PX4 Mini and using it in a Plane for Landing and Approach. Had issues with Bad Lidar Health and the customer server representative escalated this issue immediately to their technical department. After a few emails back and forth they provide a firmware update to address the issue. This is awesome especially if you have ever worked with Pixhawk or APM etc.... Good job

### ⭐⭐⭐ Configuration
*by B***. on September 18, 2020*

I am giving a three star since while I finally got it work, this should not be so difficult to configure... Here is the parameters that worked for me on a pixhawk 2.4.8: RNGFND1_TYPE:2 RNGFND1_ADDR: 112 (0x70) I had to run i2c_scanner on an arduino to get the I2C address... This address DID NOT change when I press the button (contradicting the answer from the seller)! But I got it to work now. The performance is as in the spec (min:0.47m, not sure about max yet). The vendor show provide more accurate information on how to configure it.

### ⭐⭐⭐⭐ Good
*by C***E on August 26, 2019*

This item does not work with Pixhawk 4, only on Pixhawk 2.4.8.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-05-06*