Install the GSC10 Sensor

Place the GSC10 on the rear chain stay (the side opposite of the drive train). Loosely attach the GSC10 using two cable ties.

GSC10 on rear chain stay

Install the Pedal Magnet
Attach the pedal magnet to the crank arm using the adhesive mount and a cable tie. Make sure the pedal magnet is within 5 mm of the GSC10, and the indication line on the pedal magnet is aligned with the indication line on the GSC10.
Pedal magnet on crank arm
cable tie reset button indication line

cable ties

indication line

Install the Spoke Magnet

Attach the spoke magnet by unscrewing the magnet from the plastic piece. Then place the spoke in the groove of the plastic piece and tighten slightly. The magnet can face away from GSC10 if there is not enough room between the sensor arm and spoke. Make sure the magnet is aligned with the sensor arm indication line.

spoke magnet

Adjust and Test
1. Unscrew and move the sensor arm to within 5 mm of the spoke magnet. You can also tilt the GSC10 closer to either magnet for improved alignment. 2. Press the Reset button on the GSC10. The LED light turns red, then green. Pedal to test the sensor alignment. The red LED blinks each time the crank arm passes the sensor, and the green LED blinks each time the wheel magnet passes the sensor arm. Note: The LED blinks for the rst 60 passes after a reset. Press Reset again if you require additional passes. 3. When everything is aligned and working correctly, tighten the cable ties, sensor arm, and spoke magnet.

pedal magnet

sensor arm indication line
For more information on using the GSC10 with your compatible GPS device, refer to your owners manual.

Congure Your GPS Device

To activate the GSC10 accessory: 1. Press mode to access the Main Menu. 2. Go to the Accessories page. For example, on the Edge 305, select Settings > System > Accessories. 3. In the Cadence Sensor eld, select Yes. 4. Make sure there are no other sensors Examples: Edge 305 around you. Select Restart Scan. To set your bike prole: 1. Press mode to access the Main Menu. 2. Go to the Bike prole page. For the Edge 305, select Settings > Bike Prole. 3. Select the Sensor Mounted check box. Note: To set up custom data elds on your GPS device to display cadence data, refer to your owners manual.
May 2006 190-00646-00 Rev. C Printed in Taiwan

speed and cadence sensor

Sensor Pairing
What is pairing? Pairing is the process of matching sensors, like your GSC10, with your compatible GPS device. This process occurs automatically when you turn on your GPS device and only takes a few seconds when the sensors are on and functioning correctly. Once paired, your GPS device will only receive data from your sensor. Pairing tips: Position your GPS device within 3 meters of the sensor while pairing. Stay far away from any other sensors while pairing. Restart scan if your GPS device appears to be paired with another sensor. Make sure to enable the sensors on your GPS device. Make sure the sensors are functioning correctly. Replace the battery. Clean the sensors. Dirt and sweat build-up on the sensors can weaken signals.

Replacing the Battery

1. Locate the circular battery cover on the back of the heart rate monitor or the side of the GSC10. 2. Use a coin to twist the cover counter-clockwise until it battery cover is loose enough to remove (arrow points to unlocked). 3. Remove the cover, and CR2032 battery replace the battery positive side up. Be careful not to damage or lose the o-ring gasket on the cover. GSC10 battery installation 4. Use a coin to twist the cover back into place (arrow points battery to locked). cover Note: Dispose of used battery properly.

arrow locked unlocked