Geomagnetic sensor The brand new, improved sensor and the MCU measure the speed through inductive geomagnetism. No annoying magnet installation required. Don't worry about losing magnets. Long battery life, a CR2032 battery can last more than 500 hours of work. Specification: Model: Gemini 210 dual mode for speed and cadence Wireless interface: Blutooth 4.0 & ANT + Sensor: Geomagnetic sensor Battery: CR2032 * 1 (approx. 500 hours runtime) Highest detection speed: 700c 110km / h Water repellent: IP67 Weight: 8.8 g Delivery content: 1 x Gemini 210 bike speed and cadence sensor (pre-installed battery) 1 x flat rubber pad (for crank arm) 1 x curved rubber pad (for wheel hub) 2 x small elastic rubber ring (for crank arm) 2 x large elastic rubber ring (for wheel hub) 1 x manual
F**H
Does the Job
Does the job
P**1
Cadence
Easy to set up, had it fitted and up and running within 15 minutes, only downside was that the rubber securing ring snapped after a few days as it was quite a tight fit and had too stretch it to the max.Easy fix secured with a cable tie.
D**Y
Works on an exercise bike
The media could not be loaded. The battery is good I’ve had this a few months now and not needed to change it, works with the tacx app, which also works with my garmin watch, I was going to buy one that was a garmin cadence sensor but this is cheaper and does exactly the same thing, very impressed, if I could give it more than 5* I would!
H**L
Easy install and set up.
Been trying to get a magnet based speed and cadence sensor to work for my winter trainer set up. Gave up and bought one of these to try for cadence. Arrived next day set it up for speed (easy, just pop battery out and in again check light is green, done. you only have to do it once so it's not really much of a faff.) attached sensor to rear hub with supplied rubber bands, tip: a piece of wire eg large paperclip straightened with a hooked end makes it much easier to grab end of rubber band and pull it round. spun back wheel, Garmin found it immediately. Put Ant+ dongle in laptop and Zwift had it straight away. So impressed bought another for Cadence which arrived next day, same easy set up on crank arm and within seconds was on Garmin and Zwift. Not tried BT as difficult to make work for multiple devices. Had a few good Zwift rides with no problems so far, well impressed.
C**S
For this price it’s just amazing I’ve been using this for 2 days and it was really smooth
The delivery was really quick which I personally think is amazing for this price it is a bargain I use swift and Onelap it works perfectly fine I do Recommend this enjoy
B**L
Didn’t do what it said on the tin
Installing was ok but it was hard to connect to the phone and it’s not connecting to any app. It gives me a reading of my speed so some use - but very limited
T**D
Easy to install, does the job
It works, not much else you can say.I use it on my exercise bike to connect to my Quest 2 in VZ Fit. Couldn't tell you if it leads to high accuracy but it did the job for me. Installation was a doddle, it comes with spare bands should you ever snap the first set. Not sure it would be entirely secure on an actual bike but if take steps to be more secure if that's what I needed it for.
M**W
Works with Zwift
I purchased this sensor as a cheap stopgap to allow me to connect to Zwift using my dumb turbo trainer.It was easy to set up and use and I've had no connection issues at all.
Trustpilot
1 month ago
1 month ago