1. Entwodiksyon
The Magene S3+ is a versatile outdoor/indoor speed and cadence sensor designed for cycling. It utilizes both Bluetooth and ANT+ wireless technologies, making it compatible with a wide range of bike computers, smartwatches, and cycling applications such as Onelap, Wahoo Fitness, Zwift, and Strava. This manual provides detailed instructions for the setup, installation, operation, and maintenance of your S3+ sensor.

Figure 1: Magene S3+ Speed/Cadence Sensor
2. Pake kontni
Lè w ap ouvri pake a, verifye si tout konpozan yo la:
- 1x Magene S3+ Sensor Unit
- 1x Flat Rubber Pad (for sensor mounting)
- 1x Small Rubber Elastic Ring (for crank arm mounting)
- 1x Large Rubber Elastic Ring (for hub mounting)
- 1x CR2032 Battery (pre-installed in sensor)
- Manyèl Itilizatè (dokiman sa a)

Figure 2: Standard parts included with the Magene S3+ sensor.
3. Enstalasyon
3.1 Battery Installation and Mode Switching
The Magene S3+ sensor comes with a pre-installed CR2032 battery. Before first use, you must remove the insulating sheet from the battery compartment. The sensor operates in two modes: Speed Mode and Cadence Mode. A single sensor can only operate in one mode at a time. To switch between modes, remove and re-install the battery.
- Limyè wouj: Indicates Cadence Mode.
- Limyè vèt: Indicates Speed Mode.
After re-installing the battery, observe the LED indicator. If it flashes red, the sensor is in Cadence Mode. If it flashes green, it is in Speed Mode. If the desired mode is not active, remove and re-insert the battery again until the correct color flashes.

Figure 3: Instructions for switching between Speed and Cadence modes by re-installing the battery.
Note: If you require both speed and cadence data simultaneously, two S3+ sensors are needed (one configured for speed, one for cadence).
4. Enstalasyon
The S3+ sensor can be installed on either the wheel hub (for speed) or the crank arm (for cadence).
4.1 Speed Sensor Installation (Green Light)
To install the sensor as a speed sensor:
- Ensure the sensor is in Speed Mode (green light flashes).
- Attach the flat rubber pad to the back of the sensor unit.
- Securely fasten the sensor to the center of your bike's wheel hub using the large rubber elastic ring.
- Turn the wheel to activate the sensor and ensure it can be detected by your device.
Video 1: Magene S3+ Speed Sensor Installation Guide. This video demonstrates how to install the S3+ sensor on the wheel hub for speed tracking.
4.2 Cadence Sensor Installation (Red Light)
To install the sensor as a cadence sensor:
- Ensure the sensor is in Cadence Mode (red light flashes).
- Attach the flat rubber pad to the back of the sensor unit.
- Securely fasten the sensor to the inside of your bike's crank arm using the small rubber elastic ring.
- Turn the crank to activate the sensor and ensure it can be detected by your device.
Video 2: Magene S3+ Cadence Sensor Installation Guide. This video demonstrates how to install the S3+ sensor on the crank arm for cadence tracking.
5. Operation and Connectivity
The Magene S3+ sensor supports both Bluetooth and ANT+ connectivity.
5.1 Connecting to a Smartphone App (Bluetooth)
To connect your S3+ sensor to a smartphone application (e.g., Onelap, Wahoo Fitness, Zwift, Strava):
- Ensure the sensor is awake by spinning the wheel or crank arm (depending on its configured mode). The sensor will automatically enter a sleep state after 1 minute of inactivity to save power.
- Open your preferred cycling application on your smartphone.
- Navigate to the sensor pairing or device connection section within the app.
- Chèche pou the S3+ sensor within the app. Do not attempt to pair the sensor directly through your phone's Bluetooth settings; it must be discovered and connected via the application itself.
- Select the Magene S3+ sensor from the list of available devices to establish a connection.
Note: When using Bluetooth, one sensor can only connect to one app or device concurrently.
5.2 Connecting to a Bike Computer (ANT+/Bluetooth)
The S3+ sensor can also connect to bike computers that support ANT+ or Bluetooth protocols (e.g., Garmin, Bryton, iGPSPORT).
- Ensure the sensor is awake by spinning the wheel or crank arm.
- On your bike computer, go to the sensor pairing or add device menu.
- Select to search for new sensors (Speed or Cadence, depending on your S3+ configuration).
- Once detected, select the S3+ sensor to pair.
Note: When using ANT+, the sensor can be connected to multiple devices simultaneously.

Figure 4: The S3+ sensor supports both ANT+ and Bluetooth for broad compatibility.

Figi 5: Egzamples of compatible devices and applications for the Magene S3+ sensor.
6. Antretyen
6.1 Ranplasman batri
The S3+ sensor uses a standard CR2032 coin cell battery. When the battery is low, the sensor's performance may be affected, or it may stop transmitting data. To replace the battery:
- Carefully twist open the battery compartment cover on the back of the sensor.
- Retire ansyen batri CR2032 la.
- Insert a new CR2032 battery with the positive (+) side facing upwards.
- Fèmen kouvèti konpatiman batri a byen sere, pou asire yon sele byen sere pou kenbe rezistans dlo a.
The battery life is approximately 500 hours of use.
6.2 Netwayaj ak Depo
The Magene S3+ sensor has an International Protection Rating of IP66, meaning it is dust-tight and protected against powerful water jets. While it is water-resistant, it is not designed for submersion.
- Wipe the sensor clean with a soft, damp twal apre yo fin itilize.
- Evite itilize pwodui netwayaj abrazif oswa solvang.
- Sere Capteur a nan yon kote ki fre, sèk lè li pa itilize.

Figure 6: The S3+ sensor offers long battery life and IP66 water resistance.
NAN. Depanaj
- Capteur pa detekte:
- Ensure the sensor is awake by spinning the wheel or crank arm.
- Tcheke si yo retire fèy izolasyon batri a.
- Replace the battery if it's low or depleted.
- For smartphone apps, ensure you are searching for the sensor within the app itself, not through the phone's general Bluetooth settings.
- Verify that the sensor is correctly installed and securely attached.
- Incorrect Mode (Speed/Cadence):
- Remove and re-install the battery to switch modes. Observe the LED color (Red for Cadence, Green for Speed).
- Pwoblèm koneksyon Bluetooth:
- Remember that a single sensor can only connect to one Bluetooth device/app at a time. Disconnect from other devices if necessary.
- Asire w ke Bluetooth smartphone ou a aktive.
- Sensor Enters Sleep Mode Too Quickly:
- The S3+ sensor automatically enters sleep mode after 1 minute of being stationary to conserve power. This is normal behavior. Simply start moving the wheel or crank to wake it up.
8. Espesifikasyon
| Non modèl | S3+ |
| Kalite Capteur | Speed Sensor, Cadence Sensor (Dual Mode) |
| Koneksyon | Bluetooth, ANT+ |
| Kalite batri | CR2032 Lithium Manganese Dioxide |
| Lavi batri | Apeprè. 500 èdtan |
| Dimansyon (LxWxH) | 1.17" x 0.33" x 1.51" (29.8mm x 8.4mm x 38.3mm) |
| Pwa | 9 gram |
| Evalyasyon ki enpèmeyab | IP66 |
| Tanperati Fonksyònman | -68 ° F a 122 ° F (-20 ° C a 50 ° C) |

Figure 7: Detailed dimensions and specifications of the Magene S3+ sensor.
9. Garanti ak sipò
For warranty information and customer support, please refer to the official Magene websit la oubyen kontakte vandè a dirèkteman. Kenbe resi acha ou kòm prèv acha pou nenpòt reklamasyon garanti.
Official Magene Store: Magene Amazon Store





