The GEOID CS600 is an affordable dual-function speed and cadence sensor compatible with ANT+ and Bluetooth, praised for its low cost and reliability after initial setup issues. Reviewers note minor drawbacks such as mode switching requiring battery removal and small indicator lights, but overall it offers good value for budget-conscious cyclists.
Pros
- Affordable price (around $78 including shipping).1
- Compact and lightweight design, similar to Garmin sensor.21
- Easy installation with included spacers and rubber bands.21
- Works reliably after initial issues resolved; tested over 100 km.2
- Compatible with both Garmin cycling computers and smartphone apps via Bluetooth.1
- Comes with a protective cover.1
- IP66 rating provides good protection against dust and water.1
Cons
- Cannot display cadence and speed simultaneously; must switch modes by removing battery.1
- Initial erratic speed readings at low speeds and fluctuations at higher speeds, possibly due to Dynamo hub.2
- Instructions unclear regarding indicator lights and setup.2
- Rubber bands can break, leading to potential loss; reviewer recommends electrical tape.2
- LED indicator for mode is very small.1
- Requires manual configuration of wheel size for speed accuracy.21
- Long-term reliability and performance not yet fully tested.1
Key Facts
- Dual-function speed and cadence sensor with mode selection via battery removal (red LED for cadence, green for speed).21
- Compatible with ANT+ and Bluetooth; tested with Garmin Edge 530.21
- Uses a CR2032 battery.21
- IP66 dust and water resistance rating.1
- Includes two rubber straps of different sizes and spacers for mounting on hub or crank arm.21
- Cadence range: 30-180 RPM; speed range up to 585 km/h.1
- Requires manual wheel size configuration for accurate speed.21
Reviews & Ratings
08:08The reviewer tests the GEOID CS600 dual-range speed and cadence sensor, finding it initially problematic but ultimately reliable. They attribute initial issues to a Dynamo hub and praise the sensor after over 100 km of trouble-free use.
06:16The reviewer provides a quick review of the GEOID CS600 cadence and speed sensor, which they purchased on AliExpress for about 78 dollars including shipping. They highlight its affordability, compatibility with Garmin devices via ANT+, and its dual functionality for cadence and speed, selectable by removing and reinserting the battery. The reviewer plans to conduct a more extensive field test in a future video.
Where to Buy

GEOID Speed & Cadence Dual Mode Sensor, ANT+ & Bluetooth Connectivity
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