---
product_id: 73593502
title: "SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter"
brand: "radiolink"
price: "₱2549"
currency: PHP
in_stock: true
reviews_count: 4
category: "Radiolink"
url: https://www.desertcart.ph/products/73593502-sui04-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-for-racing
store_origin: PH
region: Philippines
---

# 30ms ultra-low latency response 0.4cm ultra-high detection accuracy Compact 0.78x0.86x0.75in size, 0.017lb lightweight SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter

**Brand:** radiolink
**Price:** ₱2549
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your drone’s IQ with Radiolink’s ultrasonic guardian!

## Quick Answers

- **What is this?** SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter by radiolink
- **How much does it cost?** ₱2549 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/73593502-sui04-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-for-racing)

## 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

- • **Plug & Play Compatibility:** Effortlessly pairs with Radiolink PIXHAWK, Mini PIX, TURBO PIX, and auto-identifies I2C ports—perfect for pros and beginners alike.
- • **Featherlight & Space-Savvy:** Ultra-compact and weighing just 0.017lb, it integrates seamlessly on any multirotor drone without compromising agility or design.
- • **Pinpoint Precision Detection:** Detects obstacles as small as 0.4cm with lightning-fast 30ms response time—never miss a beat in high-speed racing or complex maneuvers.
- • **360° Obstacle Avoidance Mastery:** Supports up to 6 sensors for full horizontal, upward, and downward protection—fly with confidence in every direction.
- • **Versatile Safety for Every Mission:** Ideal for agriculture, training, rescue, and outdoor operations—ensuring your drone stays safe while you focus on the mission.

## Overview

The Radiolink SUI04 ultrasonic sensor is a compact, lightweight, and highly accurate obstacle avoidance system designed exclusively for multirotor drones. Featuring 0.4cm detection precision and ultra-low 30ms latency, it supports up to six sensors for comprehensive 3D obstacle detection and altitude hold. Compatible with popular Radiolink flight controllers and ideal for applications ranging from racing to rescue, it ensures safer, smarter flights for both beginners and professionals.

## Description

Product description Radiolink Electronics Co., Ltd. was established in 2003. And we have registered the “RadioLink” brand in China, Europe and the United States. We are specialized in researching, developing and producing RC model radio transmitters. We also offer almost RC equipment including flight controllers, RC receivers, GPS, drones, balance charger,etc. Our products are of CE, FCC, RoHS certificated. We have professional research and develop team,professional team and applied automatic producing and testing instrument so that we can provide high-quality, diversified and competitive technological products to our customers, including our professional after-sales service. Radiolink Upgraded Version SUI04 PIXHAWK ultrasonic module SUI04, could applicable to Radiolink PIXHWAK/ Mini PIX/TURBO PIX flight control, And the open source PIXHAWK flight control, but we must use Radiolink SUI04 special FC firmware (V3.5.7 version) to use the SUI04 omnidirectional obstacle avoidance ultrasonic module, other open source flight control except open source PIXHAWK does not support.automatic identification of flight control I2C, UART, MAVlink interface protocol, avoid obstacles upwards, set downwards, the first dual filtering technology, 30ms speed response, 0.4cm detection accuracy, transceiver integrated 0 blind zone, precision barrier without delay. Multiple Security technology. 30ms Speed Response Built-in 32-bit processor, using breakthrough hardware and software dual filtering technology, a very low latency of 30ms is achieved while ensuring accuracy. 0.15in High Precision With a high detection accuracy of 0.4cm, even small obstacles can be accurately captured.Detecting the dead area of the 0 blind zone, accurately positioning, not afraid of obstacles. 60 Degree Beam Angle 60° beam angle, real-time monitoring of environmental information to detect obstacles, to achieve obstacle avoidance in six directions, and to fly more easily. Multiple Operating Modes Fire rescue: can fly along obstacles, not afraid of flying hands misjudgment, blind zone and wind, airflow,timely perception of obstacles, efficient and safe implementation of rescue. F ruit tree plant protection: c an be set on the ground for precise operation on uneven slopes. Teaching and training: avoiding the mishandling of newcomers, the bomber can effectively protect the teaching equipment, and the teaching is more secure. User Guide Step 1: How to connect Download MissionPlanner on the Radiolink official website. connect the cable to the flight controller as shown, and connect the flight controller to the MissionPlanner to adjust the parameters. Warning: When using the module, the flight controller cannot be powered by USB and needs to be powered by the battery! ! ! A. Connect PIXHAWK： Connecting the SUI04 and the I2C port of PIXHAWK with a 4 pin to 4 pin wire. B. Connecting MINIPIX： WARNING: DOT NOT inset memory card. 4 pin to 6 pin wire is needed: the 4 pin end to SUI04 and the 6 pin end to the GPS port of MINIPIX Step 2: Module type setup Click " Config/Tuning " - click on " Full Parameter " List - click " Search " in the lower right corner and input " PRX_TYPE " - input value 4 - click on the right " Write Params " to save the value. Step 3: Setup the avoidance distance and the avoidance enable/disable Click " Config/Tuning "-click on " Full Parameter Tree "--click on the " “AVOID”, " set the value of the AVOID_ENABLE 2--Set the value of AVOID_MARGIN 3 click on the right " W rite Params " to save the value. Step 4:How to Enable/Disable the avoidance function by transmitter(Optional) Click " Config/Tuning " - click " Full Parameter List " - click " Search " in the lower right corner and enter " CH7_OPT " - enter value in the figure 40 - click on the right " Write Params " to save the value. Step 5 :Transmitter setting steps A Click INITIAL SETUP on the top of the interface, then click on the " Mandatory Hardware " drop-down menu and click on " FailSafe " to view the values. A. Toggle the switch. If the PWM value of CH7 is more than 1800, it means the avoidance function is enabled when the switch is at the bottom position. Step 6: Transmitter setting steps B B. If the PWM value of CH7 is less than 1800, it means the avoidance function is disabled when the switch is at the top position. Button Functions of SUIO4: Flight controller PIX can simultaneously support 6 SUI04. front/back/left/right/upward/downward. So the direction of each module should be set. Every press on the button, the module direction changes once accordingly clockwise and the module LED flashes. Different flash frequencies mean different directions. Once-Front, Twice-Right, 3 Times-Back, 4 Times-Left, 5 Times-Downward, 6 Times- Upwards. Step 7: Data Check As the data of the latest official MP is not well shown, it’s suggested to download the Radiolink' Mission Planner for MINI PIX to check data. After the above setups are complete, the SUI04 data can be checked on MP. Disconnect the PIXHAWK and restart the Mission Planner. When the MP is connecting, a new interface (as shown below) will come out automatically and the working condition of SUI04 can be checked. If it doesn’t come out, please click the icon at the task bar on the desktop. Step 8: Flight Modes Flight modes need to setup after the parameters of PIXHAWK have been set and the Ultrasonic Sensor SUI04 works, the basic flight modes include 1: Stabilize, 2: Loiter. Flight testing steps 1) Power on the drone and wait till the blue LED of PIXHAWK blinks, meaning the initialization of PIXHAWK is complete. 2) Press the safety switch about 1 to 2 seconds till the red LED of PIXHAWK is on when the blue LED of PIXHAWK is blinking. 3)Unlock the drone and the motors will begin to move if armed successfully. Push the throttle stick slowly, change the flight mode to Loiter when the drone takes off. 4) Toggle the CH7-SWA(or any other 2 position switch, it depends on which you setup at the very beginning) to turn on the avoidance function. 5) Push the throttle and aileron sticks to make the drone close to the wall/obstacle, the drone will control the racing speed and stopped at the 3 meters far from the wall/obstacle automatically. If the flight speed is too high and the distance to the wall/obstacle is less than 3meter because of the inertia, the drone will stay at 3 meters away from the wall or obstacle automatically. Alt-Hold Function Downward The Alt-Hold downward function is same as the obstacle avoidance function, the direction of SUI04 downward can be setup by pressing the same button. Press the button 5 times and the LED flashes 5 times, and the direction of SUI04 is set downward . With PIXHAWK: Connect SUI 04 and the I2C port of PIXHAWK with a 4 pin to 4 pin wire With MINIPIX: the 4 pin end to SUI04 and the 6 pin end to the GPS port of MINIPIX. WARNING : DOT NOT inset memory card. Parameters Setup 1: Click “ INITIAL SETUP ”on the top-- Click" Optional Hardware ”on the left--Click “ Range Finder ”--Click the pull-down menu and choose “ MaxbotixI2C ” or “ LightWareI2C ". Step 2: CONFIG/TUNING-Click “ Full Parameter List ”-Input“RNGFND_MAX_CM”and “RNGFND_MIN_CM” click “Enter” change RNGFND_MAX_CM value to 450cm and RNGFND_MIN_CM value to 43 cm-Click “Write Params” Device Parameters Size: 0.787*0.866*0.748in Weight: 0.28 oz (with line) Input voltage: 4.5~5.5V (high voltage is not supported) Current: 18mA Transmitting power: 90mA Working temperature: -4~176℉(-20~ 80℃) Detection distance: 15.748in~177.765in Detection accuracy: 0.039in Detection frequency: 40+-1.0MHz Output mode: I2C mode;serial port

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】: SUI04 is a transmitting and receiving hybrid ultrasonic sensor, it will help the drones (only multirotor) achieve autonomous obstacle avoidance in directions horizontal, obstacle avoidance to the upward side, and altitude hold to the downward. Supports installing up to 6 sensors on one drone for all-direction obstacle avoidance.
- 【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.
- 【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.
- 【Compatible Mode】: It could suitable for Radiolink PIXHAWK/ Mini PIX/TURBO PIX flight controller, and it also can automatically identify I2C port.
- 【Perfect for】: SUI04 ultrasonic sensor can be used on Agriculture, Training, and rescue. Safety Guaranteed for Outdoors Operation and Training. Can only work with multirotor, such as Quadcopter, Hexacopter, Octocopter, and so on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DPQQYV3 |
| Best Sellers Rank | #572,238 in Toys & Games ( See Top 100 in Toys & Games ) #2,501 in Hobby RC Quadcopters & Multirotors |
| Brand | Radiolink |
| Brand Name | Radiolink |
| Current Rating | 18 Milliamps |
| Customer Reviews | 3.5 out of 5 stars 17 Reviews |
| Included Components | battery, remote_control, transmitter |
| Item Dimensions | 0.86 x 0.78 x 0.74 inches |
| Item Weight | 0.28 Ounces |
| Item dimensions L x W x H | 0.86 x 0.78 x 0.74 inches |
| Manufacturer | Radiolink |
| Maximum Supply Voltage | 5.5 Volts (DC) |
| Model | RS6080 |
| Output Type | Digital |
| Part Number | SU04 |
| Response Time | 30 Milliseconds |
| Sensing Distance | 450 Centimeters |
| Specific Uses For Product | Agriculture, Training, Rescue, Outdoor, Drone Navigation |
| Upper Temperature Rating | 80 Degrees Celsius |

## Product Details

- **Brand:** Radiolink
- **Item dimensions L x W x H:** 0.86 x 0.78 x 0.74 inches
- **Item Weight:** 0.28 Ounces
- **Manufacturer:** Radiolink

## Images

![SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter - Image 1](https://m.media-amazon.com/images/I/51RSUCi09tS.jpg)
![SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter - Image 2](https://m.media-amazon.com/images/I/61bEhV4tmpS.jpg)
![SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter - Image 3](https://m.media-amazon.com/images/I/514h27OZCxS.jpg)
![SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter - Image 4](https://m.media-amazon.com/images/I/61INuXvSGMS.jpg)
![SUI04/SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Racing Drone, Robots, Quadcopter, Multi-Copter - Image 5](https://m.media-amazon.com/images/I/51xO+vRh32L.jpg)

## Questions & Answers

**Q: Is it compatible with arduino?**
A: No

**Q: One su04detects obstructions in one direction or in every direction?**
A: Hi, one SU04 ultrasonic sensor obstructions in one direction, you can change the direction of the module by press the button on the sensor module.

**Q: What is the I2C address for this sensor?**
A: The first slave address of SUI04 module is 0x71, each time you press the set button, the slave address will increase by 1. After you press the set button six times, the address will become 0x76. Then seventh press the set button will return to the address of 0x71.
If you still can not understand this could contact us to get support!

**Q: Will this work with the Arduino microcontroller?**
A: Hi, it cannot support Arduino microcontroller.

## 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 Philippines*
*Store origin: PH*
*Last updated: 2026-05-29*