I'm mainly posting this review to save someone else a headache. I bought the Fluid2 Trainer with the Smart Sensor so I could check out some of the virtual ride apps. The sensor comes with a free trial of Rouvy. It took me 3 days and a call to Saris Customer Service (very helpful, by the way to figure out that the Rouvy AR app only works when the sensor is in the Speed function. Customer Service guy said that if I wanted to get speed AND cadence at the same time I'd need to get a second sensor. I'm new to indoor trainers so speed only isn't a huge deal to me.

I'm new to bike trainer (Saris Fluid 2), and needed a sensor for the Zwift experience. I've lost the sensor a couple of times, but not sure why or how. In Zwift, it knocks the speed down when going up hills. I now wish I got a trainer with resistance control, so it will feel more like going up hills, and coasting downhill.

The instructions say to place the battery inside the cab and then placed the cap and battery inside the sensor battery compartment. That is actually not the case. You have to put the battery in underneath the battery prong because the prongs inside the battery compartment don?t stick up high enough. Thank you have to take a screwdriver or something and bend the other crawl up high enough so that it makes contact with the cap. Then you can put the battery compartment cap on and it will connect if you did all that right. It should just work. He shouldn?t have to use a screwdriver to manipulate the battery compartment to work correctly. I wasted a lot of time and energy on this and I had a hard time figuring out how to get hold of support. It took them a few days to get back to me. Overall a frustrating experience. That being said, when is operational, the sensor works just fine.

Very pleased with this Cadence sensor, the quality and design is very well made.

Any+ BLE speed and cadence sensor for saris indoor trainer

This took a minute for me to figure out. You have to hold it a certain way when you are turning it on to switch between speed or cadence. After I figured that out it has been a really reliable device.

The instructions are so vague I still haven't been able to use it. I've tried to call for support but an always get a message theirs a problem with your phones.

I bought the fluid 3 bike trainer that came with the speed and cadence sensor so I could ride indoors when the weather is bad with the free version of a third party app. I could not get the sensor to work. I searched the web. I contacted Saris. I just could not understand how to get my avatar to move in the app.
)n the Saris website, it just seemed to say download Rouvy and connect. I did not want to download Rouvy. So I thought let me share what I did so that maybe if someone else is as illiterate about this as I was, they won't have to struggle as much as I did.
First of all, download the app on your computer. It does not work on your phone.
Secondly, buy a USB ANT+ dongle for cycling.
Thirdly download the drivers for the dongle. Just search for that on the web.
Number four, open the device manager from the control panel, look for your dongle, click on it, and update the drivers.
Now open your cycling app, click on menu and sensors, and hopefully everything will connect, and your avatar will move.
I gave 3 stars because I think the sensor is good, but unfortunately I think the information on the Saris website is sorely lacking.
I truly hope customer service reads my review and updates their support section to include a detailed explanation of how to connect to third party apps along with driver downloads so that the next person who buys this product can just look on the Saris website and find all the information they need.
I really hope this review helps.

It was a great addition to my trainer. And it was easy to set up.

My two HS children have been driving me crazy and I needed to get them to ride their stationary bikes more so 1. They don't kill each other; and 2. I don't lose it. The sensor came quickly and was easy to set up, clip to the back wheel and connect via Bluetooth to the Zwift app. Within moments I had children cycling through New York City, chatting away while sweating and laughing. The best $40 spent and it keeps on giving.