1. Product Overview
The iGPSPORT SPD70 is a compact and precise speed sensor designed for cycling. It accurately captures bicycle speed data and transmits it via dual-protocol Bluetooth 4.0 and ANT+, ensuring compatibility with a wide range of bike computers, smartwatches, and mobile applications. Its magnet-free design simplifies installation and maintenance. The sensor features low-power chips for extended battery life and an IPX7 waterproof rating, making it suitable for various weather conditions.
Key features include:
- Captures cycling speed data for ANT+ compatible bike computers and Bluetooth-enabled training apps.
- Easy, magnet-free installation on any bike's wheel hub.
- Wide compatibility with ANT+ equipment (Garmin, Bryton, Polar, Wahoo, iGPSPORT) and Bluetooth training apps (Wahoo Fitness, iGPSPORT, Zwift, Runtastic Road Bike).
- Long battery life, providing approximately 260 hours of operation.
2. Package Contents
Please verify that all items are present in your package:
- SPD70 Speed Sensor x1
- Strap x1
- Silicon pad x1
- CR2032 battery x1
- User manual x1
3. Specifications
| Feature | Specification |
|---|---|
| Waterproof Rating | IPX7 |
| Weight | 9.5g |
| Physical Dimensions | 37 x 36 x 10 mm |
| Shockproof | Withstands natural falls within 1.5 meters |
| Wireless Transmission | Bluetooth 4.0 & ANT+ / 2.4G |
| Battery Type | CR2032 button battery |
| Working Time | Approximately 260 hours |
4. Setup & Installation
Follow these steps to set up and install your SPD70 Speed Sensor:
- Activate the Sensor: After installing the CR2032 battery (refer to the CAD70 installation video for battery installation guidance if needed), rotate the SPD70 sensor to activate it.
- Pair with Device: Turn on your iGS320 (or compatible bike computer/app). Long press the right button and select E3 (pair sensor). Activate the SPD70 by rotating it. When speed information appears on your device, the SPD70 is successfully connected.
- Install Silicon Case: Place the SPD70 sensor into its silicon protective case.
- Mount on Wheel Hub: Install the SPD70, encased in its silicon holder, onto the front wheel hub of your bicycle using the provided strap. Ensure the sensor is securely attached and does not interfere with wheel rotation.
- Verify Rotation: Rotate the wheel to confirm that the sensor's rotation is not affected and it spins freely.
Video: iGPSPORT SPD70 Speed Sensor Installation Guide. This video demonstrates the pairing process with an iGS320 bike computer, attaching the silicon case, and mounting the SPD70 sensor to the front wheel hub of a bicycle. It visually guides you through activating the sensor and ensuring proper fit.
5. Operation
The SPD70 Speed Sensor operates automatically once paired and activated. It transmits speed data to your connected device (bike computer, smartphone app, or smartwatch) as soon as the wheel begins to rotate.
- Automatic Activation: The sensor activates upon motion (wheel rotation) after battery installation.
- Automatic Sleep: If the device is not in use for 2 minutes, it will automatically enter sleep mode to conserve battery.
- Bluetooth Auto-Off: If the sensor is started but not connected to a Bluetooth device within 5 minutes, its Bluetooth transmission will automatically turn off. Motion will re-activate it.
- Dual Protocol: The sensor supports both Bluetooth 4.0 and ANT+ for versatile connectivity.
6. Maintenance
To ensure optimal performance and longevity of your SPD70 Speed Sensor:
- Cleaning: Wipe the sensor with a soft, damp cloth as needed. Avoid harsh chemicals or abrasive cleaners.
- Water Resistance: The sensor is IPX7 waterproof, meaning it can withstand immersion in 1 meter of water for up to 30 minutes. It is resistant to rain and splashes, but prolonged submersion is not recommended.
- Battery Replacement: The SPD70 uses a CR2032 button battery. When the battery is low, replace it promptly to maintain accurate data transmission. The typical working time is about 260 hours.
- Storage: Store the sensor in a cool, dry place when not in use.
7. Troubleshooting
If you encounter issues with your SPD70 Speed Sensor, consider the following:
- No Speed Data:
- Ensure the sensor is properly installed on the wheel hub and is rotating freely.
- Check the battery. Replace the CR2032 battery if it is low or depleted.
- Verify that the sensor is correctly paired with your bike computer or application. Try re-pairing if necessary.
- Ensure your receiving device (bike computer, phone) is within range and its Bluetooth/ANT+ is enabled.
- Intermittent Connection:
- Check for potential interference from other electronic devices.
- Ensure the sensor is securely mounted and not shifting during rides.
- Confirm the battery level.
- Incorrect Speed Readings:
- Ensure your bike computer or app has the correct wheel circumference settings, if applicable.
- Verify the sensor is firmly attached and not slipping on the hub.
8. Compatibility
The iGPSPORT SPD70 Speed Sensor is compatible with a wide range of devices and applications:
- Bike Computers (ANT+): Garmin Edge / Plus / Explore / Touring series, iGPSPORT 10S/50E/50S/320/520/618/620/630/BSC100S, XOSS G+, Meilan, Magene, CYCPLUS, Wahoo Elemnt series, Bryton Rider series.
- Mobile Applications (Bluetooth): Wahoo Fitness, iGPSPORT, Zwift, Runtastic Road Bike, and many other mainstream training applications.
9. Warranty & Support
For warranty information and technical support, please refer to the official iGPSPORT website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.





