GEOID CS600 Cadence/Speed Sensor for Cycling, ANT+/Bluetooth Wireless Bicycle RPM Sensor Compatible with Bike Computers, Sport Watches, iOS/Android APPS

I got this as a replacement when my Cycplus sensor fell off my crank arm. So far its secure. I have it mounted on the inside of my left crank arm of my aero bike. It fits between the crank and chainstay, with the band enough out of the way even when wearing shoe covers (the last one rubbed off when I had shoe covers on). It was easy to pair and I've never had a problem with it connecting when the computer is on. Ive used it for a few months so far without replacing the battery, logging maybe 30 hours on it so far. My favorite thing is that it doesnt give false highs like my last one did when coasting over rough terrain. Definitely a good sensor for the price.

Great product! Connects easily to a GeoID CC600 biking computer! And easily fitted mounted on the bike using the rubber clips provided. Long battery life.

Pairs easily with computer (cc600) and works as advertised. Easy to switch back and forth between modes, simply rotate from lock position to unlock position and back. Red or green light will inform you what mode you are in. Wheel mounting for speed sensor can be difficult for those of us with larger hands and tightly spaced spokes, hopefully doesn't need changing often. Instructions do not accurately express how difficult it can be to take the battery out for initial use or subsequent replacement.

These sensors are gabage. I bought two to use as a speed sensor and the other to be a cadence sensor. Neither sensor works! The light (red for cadence and green for speed) comes on when battery is inserted. However, the sensors do not connect to my cycling computer. I bought these as a replacement for Magene sensors that finally wore out after 8 years of solid use. Do not waste your money, get Magene, Garmin, or Bryton branded sensors. These are not worth the trouble nor the money. This is an update. After my review(see above), GEOID reached out to me to replace my defective sensors. They sent me two new sensors which worked right out of the box with no problems. GEOID did this despite the fact that the time to return the sensors had passed. Kudos to GEOID on the customer service! Thus far, I am happy with the replacement sensors and they seem to work fine. I will update my rating to a 3 for price and ease of use.

This works well with my Garmin watch. I do a lot of indoor cycling. It's a little hard to get on with the rubber band attachment, but it is no nonsense. I have used it both for speed and cadence, and it seemed accurate on both. You can't beat the price. I wish it was magnetic because of the rubber band, but cheapskates can't be choosers sometimes!

I had mine malfunction after only 6 months of use. It worked great at first, but then although my bike computer could find the sensor, it would not register RPM (cadence sensor). I tried the usual fix it solutions (new battery, etc.), but the sensor had failed. After posting this review, GEOID customer service contacted me, troubleshooted with me, and then sent me a new replacement sensor for free. I've therefore changed my review score from 2 stars to 4 stars for that customer service, and hopefully this sensor will last longer than 6 months! I'll let you know.

Awesome when I used it with the Geoid CC600 computer. Easily added to the CC600 and it has performed flawlessly. I have one as speed sensor and one as a cadence sensor. I encourage anyone to give it a try!

This tool was perfect to sync to my HoloFit software on my Oculus Quest 2 and 3 to log my exercises progress. Thank goodness there is a YouTube video that explained how to connect it HoloFit. I was trying to actually connect it to the Bluetooth of O2 and Q3 and that is wrong. I had to go to the HoloFit Software and in there is where you actually connect it via Bluetooth. It works great each time i have did exercises in HoloFit. It fitted on my small floor exercise bike as I was not using a large piece of equipment and I get the same results. The device is price excellent for the function it provides. It’s a good quality also and works each time I move my petal, the Bluetooth lights comes on to connect.