--- product_id: 742269639 title: "Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S" brand: "radiolink" price: "FREE" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/742269639-radiolink-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-helicopter-multirotor store_origin: GB region: United Kingdom --- # 30ms ultra-low latency response 0.4cm ultra-high detection accuracy 8-way horizontal & downward obstacle sensing Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S **Brand:** radiolink **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🚀 Navigate Fearlessly with Radiolink SU04 – Your Drone’s Sixth Sense! ## Quick Answers - **What is this?** Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S by radiolink - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/742269639-radiolink-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-helicopter-multirotor) ## 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 - • **Pinpoint Precision:** Detects obstacles as small as 0.4cm for flawless navigation - • **Compact & Lightweight:** Weighs just 8g and fits seamlessly on any drone or vehicle - • **Lightning-Fast Response:** 30ms latency ensures real-time obstacle avoidance without delay - • **Multi-Environment Ready:** Perfect for agriculture, training, rescue, and all your outdoor missions - • **Versatile Compatibility:** Works effortlessly with PIXHAWK, MINPIX, TURBO PIX & MAVlink protocols ## Overview The Radiolink SU04 is a compact, lightweight ultrasonic sensor designed for precise obstacle avoidance with 0.4cm accuracy and ultra-fast 30ms response time. Compatible with major flight controllers like PIXHAWK and MINPIX, it supports 8-way horizontal and downward sensing, making it ideal for drones, helicopters, cars, boats, and more. Perfect for professional applications in agriculture, training, and rescue, it ensures safe, autonomous navigation in complex environments. ## Description Radiolink is a high-tech manufacturer dedicated to research, manufacturing and marketing of RC model radio transmitters. We are committed to providing customers with reliable and high performance product solutions, technical support and friendly after-sales service. Connection method: 1.If you use the automatic obstacle avoidance function, PIXHAWK must be version 3.5 or later. 2. Use 6-pin wire to connect the ultrasonic sensor SU04 insert to the PIX TELEM1 or TELEM2 port. Please note: 1.Automatic Obstacle Avoidance feature inquire PIXHAWK firmware is version 3.5 or later. 2. Flight controller can not identify the detection distance if the sensor is far away from the obstacle. Barometer keeps altitude 3. PIXHAWK needs to be powered by LiPo battery. This ultrasonic sensor SU04 will not be powered by USB. 4. When you are ready for the first flight, make sure your drone will fly at low speed and safely. 5. Follow all the above procedures, after setting all parameters, reconnect PIXHAWK and open the MP. Obstacle Sensor Specifications: Size: 20 x 22 x 19mm Weight: 8g (including wire) Input Voltage:4.5~5.5V (without high voltage) Current: 18mA@5V Transmission speed: 90mA Operating Temperature: -20 Degree ~ 80 Degree Detection range: 40cm-450cm Detection Accuracy: 0.4cm Detection frequency: 40+-1.0KHz Output: I2C/Mavlink ## Features - 【Obstacle Avoidance】: SU04 is a transmitting/receiver hybrid ultrasonic sensor that allows for autonomous obstacle avoidance with 8-way horizontal, obstacle avoidance and downward altitude - 【SMALL AND MULTIFUNCTIONAL】: Single probe is only 0.01 pounds and 0.88 x 0.87 x 0.75 inches. Easy to install on your drone Obstacle Avoidance function protects your device when you practice beginners - 【Best Choice】: SU04 ultrasonic sensor can be used for agriculture, training and rescue. Guaranteed safety for outdoor operation and training. Compatible with Helicopters, Multirotors, Airplanes, Cars, Boats - 【HIGH PRECISION AND LOW DELAY】: Support 0.4cm high detection accuracy, can capture even small obstacles. Accurate positioning without fear of obstacles. Super fast response, latency up to 30ms - Supported Modes: SU04 is compatible with RadioLink flight controller PIXHAWK, MINPIX, TURBO PIX, and I2C and UART (MAVlink protocol) are automatically identified - Gender : Unisex ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Radiolink | | Part number | SU04 | | Item Weight | 8 g | | Product Dimensions | 1.98 x 1.91 x 2.18 cm; 8 g | | Size | S | | Color | green | | Style | Ultrasonic sensor | | Material | Plastic | | Measurement Accuracy | 0.15" | | Mounting Type | Flange Mount | | Specific Uses For Product | Agriculture, Training and Rescue | | Included Components | Ultrasonic sensor | | Batteries Required? | No | | Item Dimensions LxWxH | 20 x 19 x 22 mm | ## Product Details - **Brand:** RadioLink - **Item dimensions L x W x H:** 20 x 19 x 22 mm - **Material:** Plastic - **Item Weight:** 8 Grams - **Style:** Ultrasonic sensor ## Images ![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S - Image 1](https://m.media-amazon.com/images/I/61r1dsfY1XL.jpg) ![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S - Image 2](https://m.media-amazon.com/images/I/71PuPuvyIqL.jpg) ![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S - Image 3](https://m.media-amazon.com/images/I/616rah1-3VL.jpg) ![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S - Image 4](https://m.media-amazon.com/images/I/61pyXV7j-YL.jpg) ![Radiolink SU04 Ultrasonic Sensor Range Finder Obstacle Avoidance Helicopter Multirotor Airplane Car Boat Compatible with PIXHAWK MINPIX Turbo PIX Green S - Image 5](https://m.media-amazon.com/images/I/61G-pdD4emL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/742269639-radiolink-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-helicopter-multirotor](https://www.desertcart.co.uk/products/742269639-radiolink-su04-ultrasonic-sensor-range-finder-obstacle-avoidance-helicopter-multirotor) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*