Derny › Treadmills › Horizon 7.0AT

Horizon 7.0AT

Let your heart rate set the Horizon 7.0AT’s speed.

Derny connects to your 7.0AT over Bluetooth and reads your heart rate. When your heart rate climbs above your target, it slows the belt. When you recover, it speeds back up. You choose the fastest speed it’s allowed to use.

At a glance

What you get on a 7.0AT

SupportedDerny sets the belt speed
SpeedSet by Derny from your heart rate, never above your max auto speed.
InclineAdaptive workouts leave it to you on the console. A custom workout can set it if the treadmill accepts incline control.
ConsoleSpeed buttons, Stop and the safety key always work.
You needThe Derny app on iPhone or Android, and a Bluetooth heart-rate strap or an Apple Watch.
AfterwardsRuns upload to Strava and save to Apple Health or Health Connect.

Getting started

Your first run

Workouts

What you can run

Adaptive Endurance

Hold one steady, easy heart rate. Derny slows the belt as you tire so you can keep holding it.

Adaptive Threshold

A warm-up, then three long hard blocks. Each block’s speed is based on how your heart responded to the one before.

Free workout or your own

Just run and record, or build your own workout with speed targets and heart-rate rules.

Staying in control

You can always take over

Ending the workout doesn’t stop the belt. Pause or End in Derny stops it changing the speed. To stop running, use Stop on the console or the safety key.

Questions people ask

Horizon 7.0AT questions

Can an app control the Horizon 7.0AT’s speed?

Yes. Derny sets the belt speed from your heart rate over Bluetooth, and never goes faster than the max auto speed you choose.

Can Derny change the Horizon 7.0AT’s incline?

Only in a custom workout that sets an incline, and only if the treadmill accepts incline control from the app. Adaptive workouts leave the incline to you on the console, and Derny won’t start a workout that sets only the speed while the incline is above 5%.

Can I still use the console while Derny sets the speed?

Yes. The speed buttons, Stop and the safety key all keep working. Change the speed yourself and Derny carries on from there.

How do I stop the belt?

Press Stop on the console or pull the safety key. Pausing or ending the workout in Derny stops it changing the speed, but doesn’t stop the belt.

Can I use Derny and Zwift at the same time?

Usually not. Most treadmills connect to one app at a time, so close the other app before you connect Derny.

Do my runs go to Strava?

Yes. Connect Strava once and every finished run or walk uploads on its own. Derny also saves it to Apple Health on iPhone or Health Connect on Android.

Try it

Free while in beta, on iPhone and Android.

When Derny launches, it will be a one-time purchase, not a subscription.

Not on a 7.0AT? Derny works with most Bluetooth treadmills. See treadmills.