Bike speed and cadence sensor mounted on a crank during indoor training

Speed & Cadence Sensor – ANT+ and Bluetooth Dual Mode Bike Sensor for Zwift, Wahoo & Cycling Computers, IPX7 Waterproof Magnetless Trainer Sensor

4.83 / 5.0

Fellmont Outdoors · 14:366#1Pcs CS600 Sensor

Speed & Cadence Sensor – ANT+ and Bluetooth Dual Mode Bike Sensor for Zwift, Wahoo & Cycling Computers, IPX7 Waterproof Magnetless Trainer Sensor

Name: Speed & Cadence Sensor – ANT+ and Bluetooth Dual Mode Bike Sensor for Zwift, Wahoo & Cycling Computers, IPX7 Waterproof Magnetless Trainer Sensor
Rating: 4.83 (75 reviews)

£29.99 ~~£39.99~~Save 25%

Selling Out Fast

Only 23 left in stock. Order soon to avoid missing out.

ANT+ and Bluetooth at once, so it pairs with computers, watches and training apps
Works as a speed sensor or a cadence sensor - run two if you want both
Magnetless, so there is no spoke magnet to line up and nothing to knock out of position
IPX7 rated, which covers rain, puddles and sweaty turbo sessions
Sleeps after a minute standing still and wakes when you start pedalling
Switching between speed and cadence means taking the battery out and refitting it

Pack Size

Single Sensor 2 Sensor Pack

In stock, ships by Wed, 4th Nov

30 Day Returns
Free Shipping
1 Year Warranty

Delivery & returns

Tracked delivery on every order. Returns accepted within 30 days in original condition.

What's in the box

1 or 2 x CS600 sensor, depending on the option chosen Mounting straps Battery

Specifications

Modes	Speed or cadence, switched by removing and refitting the battery
Connectivity	ANT+ and Bluetooth dual mode
Compatible with	Zwift, Rouvy, Peloton, TrainerRoad, Wahoo Fitness, RideWithGPS, Openrider, Cyclemeter and more
Water resistance	IPX7
Battery	Lithium coin cell
Power saving	Auto sleep after 1 minute stationary
Fitting	Magnetless, strap-on
Model	CS600
Options	1 or 2 sensors
Battery life	No published figure
Please note	The Wahoo app cannot track two data types at once, even with two sensors fitted

Product care

Check the strap is tight before a ride; a sensor that rotates on the crank gives erratic readings. IPX7 covers rain and sweat. Rinse salt and sweat off after indoor sessions, which are harder on it than rain. Carry a spare coin cell if you are travelling to an event. Keep coin cells away from children - they are extremely dangerous if swallowed. Re-pair the sensor in your app if readings go missing before assuming it has failed.

Full details

Track how fast your legs are really turning with this Fellmont Speed and Cadence Sensor. Switching between speed and cadence mode is as simple as reinstalling the battery, so one small sensor covers both jobs, and you can run two of them if you want speed and cadence at the same time. It is the easy upgrade for indoor training and outdoor data logging.

Dual-mode ANT+ and Bluetooth means it talks to almost anything: cycling computers, sports watches and the training apps riders actually use, including Zwift, Rouvy, Peloton, Openrider, Cyclemeter, RideWithGPS, TrainerRoad and Wahoo Fitness. Note that the Wahoo app cannot track two data types at once, even with two sensors fitted. Cadence data is one of the quickest ways to improve your riding, because it shows whether you are grinding a big gear or spinning efficiently on climbs and into headwinds.

There are no magnets or spoke fittings to line up, so it straps on in moments and stays put. The sensor sleeps automatically after a minute at a standstill to save battery and wakes when you start pedalling, and the IPX7 rating means rain, puddles and sweaty turbo sessions are no problem. Choose a single sensor or a money-saving pair. Order your Fellmont Outdoors sensor today.

Modes: speed or cadence, switched by reinstalling the battery
Connectivity: ANT+ and Bluetooth dual mode
Compatible: Zwift, Rouvy, Peloton, TrainerRoad, Wahoo Fitness and more
Water resistance: IPX7
Battery: lithium coin cell
Power saving: auto sleep after 1 minute stationary
Fitting: magnetless, strap-on
Model: CS600
Options: 1 or 2 sensors

ANT+ / BLE Dual mode
IPX7 Rain and turbo sweat
Magnetless Nothing to align

Why cadence

The number that changes how you ride.

Speed tells you what happened; **cadence tells you what you are doing about it**. Watching your pedal revolutions is the quickest way to notice that you **grind a big gear up every climb** or wind out into a headwind, and it is the one metric that changes technique rather than just recording it.

**Cadence** shows grinding versus spinning
**Speed mode** for logging rides without GPS drift
**Run two sensors** to get both at once

Compatibility

It talks to what you already use.

**ANT+ and Bluetooth together** means it pairs with cycling computers, sports watches and the apps people actually train on — **Zwift, Rouvy, Peloton, TrainerRoad, Wahoo Fitness, RideWithGPS** and others. One caveat worth knowing before you buy: the **Wahoo app cannot track two data types at once**, even with two sensors fitted.

**ANT+ and Bluetooth** dual broadcast
**Zwift, Rouvy, Peloton, TrainerRoad** and more
**Wahoo app limitation** - one data type at a time

Fitting and power

Strap it on and forget it.

There is **no magnet to align** and nothing to clip to a spoke, so fitting takes moments and nothing drifts out of position after a pothole. It **sleeps automatically after a minute** standing still and **wakes when you pedal**, which is what makes a coin cell last. **IPX7** covers rain, road spray and a turbo session that puddles on the floor.

**Magnetless, strap-on** fitting
**Auto sleep and wake** to save the cell
**IPX7** - rain, puddles and indoor sweat

30 Day Returns
Free Shipping
1 Year Warranty

Customer Reviews

Includes reviews collected from other sales channels.

4.83 out of 5 Based on 75 reviews

5 69
4 3
3 1
2 0
1 2

Customer photos

Tyrone Cormier24 October 2026
It works perfectly in conjunction with the existing CC600 speedometer without any issues.
Oliva Ortiz16 October 2026
I have tested the product and it works very well; now I can keep track of the pace of my workouts.
Alena Krajcik15 October 2026
Good
Dewitt Corwin8 October 2026
Works perfectly, very good quality, recommended...
Jamel Kassulke3 October 2026
Connected well, easy transition between speed and cadence
Delila Swaniawski21 September 2026
Works well
Georgette Friesen16 September 2026
Excellent quality, I loved it!
Darron Emard12 September 2026
Installed and immediately working, I would say excellent with my igpsport200.

Frequently Asked Questions

Can one sensor do speed and cadence at the same time?

No. One sensor does one job at a time, and you change which by taking the battery out and refitting it. If you want both at once, buy the two-sensor pack - that is exactly what it is for.

Will it work with Zwift?

Yes. It broadcasts on both ANT+ and Bluetooth, which covers Zwift, Rouvy, Peloton, TrainerRoad and the rest. For Zwift on a dumb trainer, the cadence sensor is the one that improves the experience most.

What is the catch with the Wahoo app?

The Wahoo Fitness app cannot track two data types simultaneously, so even if you fit two sensors it will show one at a time. That is a limitation of the app rather than the sensor - other apps handle two sensors normally.

Do I need a magnet on the spokes?

No, and that is the main reason to pick this type. It reads movement directly, so there is no magnet to align, nothing to slip out of position after a pothole, and no gap to re-set every time you take the wheel out.

How long does the battery last?

No figure is published, so we will not guess at one. The auto-sleep is what matters in practice - the sensor shuts down a minute after you stop and wakes when you pedal, so it is only drawing power while you ride. Carry a spare coin cell to an event and you will never be caught out.

Can I use it on a turbo trainer?

Yes, and it is one of the best uses for it. Cadence on a dumb trainer turns an indoor session into something you can actually structure. IPX7 means the sweat that collects under a trainer is not a problem.

Goes well with

Pack it together.

Shelter & Tents
Tent Pegs Ground Anchors 10pcs Stainless Steel Multi Rope Fixing Nails - Glow in the Dark Heavy Duty Stakes for Camping, Trampolines & Gazebos
4.79 · 29
£9.99~~£19.99~~
Tools & Everyday Carry
Folding Saw Woodworking Hacksaw Multifunction - Sharp 7 TPI Camping Pruning Saw for Garden, Tree Cutting, Bushcraft & Firewood Prep
4.93 · 75
£14.99~~£24.99~~
Camp Kitchen & Cooking
Travel Spice Kit 5 Clear Seasoning Bottles with Storage Bag - Splicing Condiment Container Set for Camping, BBQ, Picnics & Caravanning
3.89 · 9
£9.99~~£14.99~~
Cycling
Balaclava Face Mask Breathable Summer Sun Protection Hood - Elastic Full Face Cover Scarf for Cycling, Hiking, Fishing, Skiing & Motorcycling
4.93 · 75
£9.99~~£14.99~~

5 stars: 69 (92%)
4 stars: 3 (4%)
3 stars: 1 (1%)
2 stars: 0 (0%)
1 star: 2 (3%)

It works perfectly in conjunction with the existing CC600 speedometer without any issues.

I have tested the product and it works very well; now I can keep track of the pace of my workouts.

Good

Works perfectly, very good quality, recommended...

Connected well, easy transition between speed and cadence

Works well

Excellent quality, I loved it!

Installed and immediately working, I would say excellent with my igpsport200.

Everything is perfect, already configured with the cycle computer, now ready for use, great value for money.

Very easy installation, connected very quickly with my iGSport GPS.

Very good, works perfectly.

Cadence and speed sensor, compatible with other cycle computer models

Product received as described, everything is fine, just haven't tested it yet.

Everything perfect 💯

Speed & Cadence Sensor – ANT+ and Bluetooth Dual Mode Bike Sensor for Zwift, Wahoo & Cycling Computers, IPX7 Waterproof Magnetless Trainer Sensor

Excellent product, works very well with the bike computer.

The product is very good, it arrived quickly.

There are no issues with compatibility with the CC700, and there are no problems using it for cadence measurement.

well packaged it arrived

It works pretty well in ant+, not like that in bluetooth, because it interferes with the heart rate sensor signal. tested with mywhoosh in a high end desktop

Speed & Cadence Sensor – ANT+ and Bluetooth Dual Mode Bike Sensor for Zwift, Wahoo & Cycling Computers, IPX7 Waterproof Magnetless Trainer Sensor

Small size, good quality

Speed & Cadence Sensor – ANT+ and Bluetooth Dual Mode Bike Sensor for Zwift, Wahoo & Cycling Computers, IPX7 Waterproof Magnetless Trainer Sensor

The number that changes how you ride.

It talks to what you already use.

Strap it on and forget it.

30 Day Returns

Free Shipping

1 Year Warranty

Customer Reviews

Frequently Asked Questions

Pack it together.

Tent Pegs Ground Anchors 10pcs Stainless Steel Multi Rope Fixing Nails - Glow in the Dark Heavy Duty Stakes for Camping, Trampolines & Gazebos

Folding Saw Woodworking Hacksaw Multifunction - Sharp 7 TPI Camping Pruning Saw for Garden, Tree Cutting, Bushcraft & Firewood Prep

Travel Spice Kit 5 Clear Seasoning Bottles with Storage Bag - Splicing Condiment Container Set for Camping, BBQ, Picnics & Caravanning

Balaclava Face Mask Breathable Summer Sun Protection Hood - Elastic Full Face Cover Scarf for Cycling, Hiking, Fishing, Skiing & Motorcycling