--- product_id: 177438279 title: "Outdoor/Indoor Speed/Cadence Sensor for Cycling, Wireless Bluetooth/Ant+ Bike Computer RPM Sensor for Road Bike or Spinning Bike and Trainers Compatible with Onelap, Wahoo Fitness, Zwift" brand: "magene" price: "R580" currency: ZAR in_stock: true reviews_count: 13 url: https://www.desertcart.co.za/products/177438279-outdoor-indoor-speed-cadence-sensor-for-cycling-wireless-bluetooth-ant store_origin: ZA region: South Africa --- # Dual Bluetooth & ANT+ connectivity Long-lasting CR2032 battery Accurate speed or cadence sensing Outdoor/Indoor Speed/Cadence Sensor for Cycling, Wireless Bluetooth/Ant+ Bike Computer RPM Sensor for Road Bike or Spinning Bike and Trainers Compatible with Onelap, Wahoo Fitness, Zwift **Brand:** magene **Price:** R580 **Availability:** ✅ In Stock ## Summary > 🚴‍♀️ Ride Smarter, Track Better — Never Miss a Beat! ## Quick Answers - **What is this?** Outdoor/Indoor Speed/Cadence Sensor for Cycling, Wireless Bluetooth/Ant+ Bike Computer RPM Sensor for Road Bike or Spinning Bike and Trainers Compatible with Onelap, Wahoo Fitness, Zwift by magene - **How much does it cost?** R580 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/177438279-outdoor-indoor-speed-cadence-sensor-for-cycling-wireless-bluetooth-ant) ## Best For - magene enthusiasts ## Why This Product - Trusted magene brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power-Smart Auto Sleep:** Sensor intelligently hibernates after 1 minute of inactivity, maximizing battery life so you never miss a ride. - • **Universal Compatibility:** Works effortlessly with top cycling apps like Zwift, Wahoo Fitness, Garmin Connect, and Onelap for a connected training experience. - • **Precision Cycling Metrics:** Choose speed or cadence mode with magnetic sensor tech delivering real-time, reliable RPM data for every pedal stroke. - • **Compact & Weatherproof Design:** Lightweight 9g sensor with IP66 rating ensures durability and performance in all weather conditions, indoors or outdoors. - • **Seamless Dual-Protocol Connection:** Connect simultaneously to multiple devices with ANT+ or pair one-to-one via Bluetooth for flawless ride tracking. ## Overview The Magene S3+ is a compact, wireless speed or cadence sensor designed for road and spinning bikes. Featuring dual Bluetooth and ANT+ connectivity, it pairs seamlessly with popular cycling apps to deliver precise RPM data. Its power-saving auto sleep mode and IP66 weatherproof rating ensure reliable performance indoors and outdoors, making it an essential smart accessory for serious cyclists. ## Description is a combined word of “magnetic” and “gene”, which means that is a technology company possessing magnetic gene. Founded in December 2015, has always been committed to the development of intelligent, interesting and information-based cycling sports. Focusing on user needs and oriented by the development trend of cycling, Magene applies cutting-edge R&D technologies, innovative scientific and technological products and smart sports equipment to both outdoor and indoor cycling scenes, so as to create excellent and pleased cycling experience for users in a scientific way Our vision：To be the leading brand for smart-cycling ecosystem Our mission：Enable cyclists to have a safe, easy-to-use, enjoyable biking experience To ensure the best performance and avoid common connection issues, we strongly recommend all users carefully review the operation guidance before first use. For the , proper setup and activation are essential. Many connection problems are caused by incorrect installation, inactive sensor status, or improper pairing methods. B Watch the provided in the product listing images Read the available on this page Follow the correct steps for We have recently added a to this page to help you quickly resolve any issues and get the best experience from your ride. If you still need assistance, our support team is always here to help. Ride smarter with Magene. To ensure a smooth experience with your Magene S3+ sensor, please carefully review the following key points. These tips address the most common reasons why the device may fail to connect. Review Instructions First: If you're experiencing connection issues, start by watching the operation video in the main listing image and reading the detailed user manual included in the product packaging. Remove the Battery Insulation Film: Before first use, ensure the insulation film on the battery has been completely removed. Secure the Battery Cover Properly: Rotate the battery cover clockwise until the white dot aligns with the lock mark. This ensures proper contact. Check for LED Indicator: Once powered, the sensor should flash a green or red light. If no light appears, the sensor is not powered on and cannot be connected. Speed Mode: Spin the wheel to activate the sensor and allow it to be detected. Cadence Mode: Rotate the crank arm to trigger the sensor. If the sensor remains idle, it will stay in sleep mode and cannot be connected. Do NOT connect via your phone’s Bluetooth settings. Make sure your phone’s Bluetooth is turned on. Open a compatible cycling app (e.g., Magene, Wahoo, Zwift). Add the S3+ sensor within the app interface. Remove the battery, wait 5 seconds, then reinstall (tighten cover to LOCK). Green flashing: Speed mode (mount on spokes). Red flashing: Cadence mode (mount on ). If indicator does not match intended use, repeat battery removal/reinstall. Speed mode: Secure to spokes, sensor near hub, sensing area <5mm from rim/metal. Cadence mode: Attach to exterior, ensure clear rotation path. After mounting, manually spin wheel/crank and check for data in app. Ensure plastic battery tab is removed. Sensor enters sleep after 1 minute inactivity; spin wheel/crank to wake. Replace with fresh CR2032 battery if unused for extended periods. Open app (Zwift, Garmin Connect, Magene Utility, etc.) and search for sensor (BLE & ANT+ supported). If not detected: Disable nearby Bluetooth devices → wake sensor → rescan. Test first with official app. If unresolved, contact support with photos/video of LED and mounting setup. ## Features - [Battery] Remove the insulating sheet of the pre-installed battery before usage; re-install the battery to switch between the speed and cadence mode. - [Mode] 1 sensor can ONLY select one mode (Speed or Cadence) at the one time.So you need 2 sensors to test both speed and cadence.(1 for speed,1 for cadence) - [Device] When using the Bluetooth protocol 1 sensor can ONLY connect to 1 APP or device concurrently; When using ANT+ protocol it can be connected to multiple devices at the same time. - [Connection] When using a smart phone APP, you need to search for the sensor in the APP, searching through the phone system’s Bluetooth setting is invalid. - [Hibernation] S3+ sensor will automatically enter the sleep state for 1 minute to save power after the sensor is stationary, the sensor will ONLY start sending broadcasts after it is properly woken-up. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08252X8VS | | Battery Type | Lithium Manganese Dioxide | | Best Sellers Rank | #6,325 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #2 in Cycling Computers | | Brand Name | Magene | | Color | Black | | Connectivity Technology | Bluetooth | | Customer Reviews | 4.0 4.0 out of 5 stars (4,886) 4.0 out of 5 stars | | Display | LCD | | Global Trade Identification Number | 08414775870867 | | Human Interface Input | Buttons | | Included Components | Battery, Magnet | | International Protection Rating | IP66 | | Item Dimensions L X W X H | 1.17"L x 0.33"W x 1.51"H | | Item Weight | 9 g | | Manufacturer | Magene | | Manufacturer Part Number | S3 | | Model Number | S3+ | | Mounting Type | ['Stem Mount', 'Handlebar Mount'] | | Sensor Type | Cadence Sensor, Speed Sensor | | Unit Count | 1 Count | ## Product Details - **Brand:** Magene - **Color:** Black - **Display Type:** LCD - **Item Weight:** 9 g - **Product Dimensions:** 1.17"L x 0.33"W x 1.51"H ## Images ![Outdoor/Indoor Speed/Cadence Sensor for Cycling, Wireless Bluetooth/Ant+ Bike Computer RPM Sensor for Road Bike or Spinning Bike and Trainers Compatible with Onelap, Wahoo Fitness, Zwift - Image 1](https://m.media-amazon.com/images/I/61CRclq4OaL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: I don’t have a bike computer can I use this with the iPhone/app only, no computer needed?** A: Yes. You can use the Wahoo app. You don't even have to create an account with Wahoo. **Q: Does this work for indoor cycling on a trainer, with connection to an iPhone, without a bike computer? I can’t seem to pair it with any apps so far** A: Hello, please use "Magene Utility" app to get it connected, then use it with your indoor cycling app. It works with most of the popular apps. Please contact us directly if you need any further help. **Q: will this record total count of spins per ride session, (not just per min)?** A: It would seem the device is capable (it just counts...), but depends what your app/computer will report. My Wahoo element bolt only gives rpm........ **Q: Is this compatible with Magellan Cyclo 505 Bike Computer** A: Yes it is, both Magene S3+ Sensor and Cycle 505 bike computer are ant+ compatible, they will work with each other. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It just works with Apple Fitness *by on Reviewed in the United States June 2, 2026* The Magene speed/cadence sensor paired with my Apple Watch quickly and has been completely trouble-free. Once installed, I never have to think about it. When I start pedaling, it automatically connects and reports cadence in the Apple Fitness cycling app. It has been reliable, accurate, and easy to use. For anyone wanting cadence data without spending a lot of money, this has been an excellent addition to my bike. ### ⭐⭐⭐⭐⭐ Exactly what I needed *by on Reviewed in the United States August 7, 2026* Works great. Tried in cadence mode and speed mode. Works great! I put it on and just forgot about it. ### ⭐ Endless struggles with the battery cover and getting the red/green led to flash consistently. *by on Reviewed in the United States January 26, 2026* Sadly, I had no luck with this device ... and I never get as far as getting it installed on the bike. The older model had a notch extending out from the battery cover, making it relatively easy to slide the cover to then remove. This model has two indented notches pressed into the top of the battery cover so you'll have to use a coin or other similar tool to open the cover, not a major deal but super annoying when you end up having to fight with the cover repeatedly as I did. I struggled getting the battery cover to reseat properly into the unit, I tried seeing if there was a groove I needed to fit. The manual mentions to push the cover back on but that didn't work reliably for me. Perhaps most frustrating was the red/green light wasn't cycling as it was supposed to. This feature worked perfectly on my older sensor, take the cover off, take the battery out, put it back in, the LED flashes either red or green (depending upon what it was set to before). The light would not flash reliably on this model and more often then not it would flash red but was a struggle to get it to flash green. The frustration was magnified when it would finally flash green and then by the time I struggled to reseat the battery cover, the light would flash red again. I strugged with this for hours, wanting to believe it shouldn't be this difficult. Eventually I had to give up looking for consistency. One time, the unit finally flashed a green light and I was able to get the cover on...only for it to come off a short time later. I decided to return this. It's not worth the fight especially considering whenever the battery dies, I'd have to go through the same process all over again ... nope! ## Frequently Bought Together - Magene Outdoor/Indoor Speed/Cadence Sensor for Cycling, Wireless Bluetooth/Ant+ Bike Computer RPM Sensor for Road Bike or Spinning Bike and Trainers Compatible with Onelap, Wahoo Fitness, Zwift, Strava - Magene H303 Heart Rate Monitor, Heart Rate Sensor Chest Strap, Protocol ANT+/Bluetooth, Compatible with iOS/Android APPs - Magene C606 Smart Navigation GPS Bike Computer with Offline Map, 2.8-inch Color Touchscreen, WiFi & Bluetooth Cycling Computer, 11 Languages, IPX7 Waterproof --- ## 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.za/products/177438279-outdoor-indoor-speed-cadence-sensor-for-cycling-wireless-bluetooth-ant](https://www.desertcart.co.za/products/177438279-outdoor-indoor-speed-cadence-sensor-for-cycling-wireless-bluetooth-ant) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-25*