---
product_id: 687991950
title: "Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX"
brand: "radiolink"
price: "82198CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/687991950-radiolink-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-for-helicopter
store_origin: SN
region: Senegal
---

# 30ms lightning-fast response 0.4cm ultra-precise detection 8-directional obstacle avoidance Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX

**Brand:** radiolink
**Price:** 82198CFA
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your drone’s IQ with SU04 — avoid obstacles before you even see them!

## Quick Answers

- **What is this?** Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX by radiolink
- **How much does it cost?** 82198CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/687991950-radiolink-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-for-helicopter)

## 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:** Ultra-low 30ms latency ensures split-second obstacle avoidance.
- • **All-Terrain Safety:** Reliable in agriculture, training, rescue & outdoor missions with 450cm range.
- • **Pinpoint Precision:** Detects obstacles as small as 0.4cm for flawless navigation.
- • **Compact & Lightweight:** Weighs just 8g and fits discreetly on drones, cars, boats & more.
- • **Versatile Compatibility:** Seamlessly integrates with PIXHAWK, MINPIX & Turbo PIX controllers.

## Overview

The Radiolink SU04 Ultrasonic Sensor is a compact, high-precision obstacle avoidance device designed for drones, RC vehicles, and boats. Featuring 0.4cm detection accuracy, 30ms response time, and 8-directional sensing, it ensures safe autonomous navigation. Compatible with popular flight controllers like PIXHAWK, MINPIX, and Turbo PIX, it supports I2C and MAVLink protocols, making it ideal for agriculture, training, and rescue operations.

## Description

Radiolink is a high technology manufacturing company dedicated to researching, manufacturing and marketing of RC model radio transmitters. We are committed to providing customers with a high reliability and high performance product solution, as well as providing technical support and friendly after-sales service.How to connect: 1.Require your PIXHAWK is version 3.5 or later version when you will use automatic obstacle avoidance function.2.Use the 6pin wire connect the Ultrasonic Sensor SU04 insert to the TELEM1 or TELEM2 port of PIX.Please Note:1.Automatic obstacle avoidance function asks the firmware of PIXHAWK is version 3.5 or later version. 2.The flight controller cannot identify the detection distance when the sensor is far from the obstacle more than 450cm, it will altitude hold by barometer.3.PIXHAWK have to powered by LiPo battery, it cannot power by USB when you use this utrasonic sensor SU04.4.When you ready for the first flight, please make your drone at a lower speed to keep the safe flight.5.please reconnect the PIXHAWK and reopen the MP after all the parameters setup as all the above steps.Obstacle Sensor Specifications:Size: 20*22*19mmWeight: 8g(include wires)Input Voltage: 4.5~5.5V(No high voltage)Current: 18mA@5vTransmit Rate: 90mAWorking Temperature: -20°~80°Detection Range: 40cm~450cmDetection Accuracy: 0.4CMDetection Frequency: 40+-1.0KHz Output: I2C/Mavlink

## 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 |
|---------------|-------|
| Brand | Radiolink |
| Item dimensions L x W x H | 20 x 19 x 22 Millimeters |
| Material | Plastic |
| Item Weight | 8 Grams |
| Style | ultrasonic sensor |
| Current Rating | 18 Milliamps |
| Maximum Supply Voltage | 5.5 Volts |
| Measurement Accuracy | 0.4 cm |
| Measuring Range | 40cm to 450cm |
| Mounting Type | Flange Mount |
| Output Type | Digital |
| Response Time | 30 Milliseconds |
| Sensing Distance | 450 Centimetres |
| Specific Uses For Product | agriculture, training, rescue |
| Manufacturer | Radiolink |
| Model Number | SU04 |
| Assembly Required | No |
| Batteries Required | No |
| Material Type(s) | Plastic |
| Colour | Green |
| Product Dimensions | 1.98 x 1.91 x 2.18 cm; 8 g |
| Item model number | SU04 |
| Manufacturer recommended age | 14 years and up |
| Country of Origin | USA |
| Item Weight | 8 g |

## Product Details

- **Brand:** Radiolink
- **Item dimensions L x W x H:** 20 x 19 x 22 Millimeters
- **Material:** Plastic
- **Item Weight:** 8 Grams
- **Style:** ultrasonic sensor

## Images

![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX - Image 1](https://m.media-amazon.com/images/I/61r1dsfY1XL.jpg)
![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX - Image 2](https://m.media-amazon.com/images/I/71PuPuvyIqL.jpg)
![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX - Image 3](https://m.media-amazon.com/images/I/616rah1-3VL.jpg)
![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX - Image 4](https://m.media-amazon.com/images/I/61pyXV7j-YL.jpg)
![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance for Helicopter, Multirotor, Airplane, Car, and Boat, Compatible with PIXHAWK, MINPIX and Turbo PIX - Image 5](https://m.media-amazon.com/images/I/61G-pdD4emL.jpg)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-26*