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Frequently Asked Questions


What does OpenWind calculate?

The sensor package of OpenWind includes: AWA /  AWS, compass and pitch / roll. In Addition to that, our application calculates COG, SOG, VMG, AWD, TWD, TWS, TWA and rotating mast angle compensation. The SOG and COG are calculated from the phone’s GPS and used in formulas such as TWS.

Can i mount it directly on the mast and will i have problems with the Bluetooth connection?

Yes you can mount it directly on the mast. OpenWind is designed to never run out of battery, you only switch the power button ON once and the device is self sufficient. We use bluetooth low energy  technology and has a range up to 50 meters with no connection problem.

Can i connect it with NMEA2000 or 0183?

OpenWind is compatible with NMEA protocol via our NMEA kit device.

What is the difference between the OpenWind anemometer and most common anemometers out there?

The usual half sphere cup anemometer measures differently depending on the angle of heel. The design of the blades from the OpenWind anemometer can measure more precisely with angle variation. In addition to the integrated 9 axis sensor we also correct any small decimal variations. The innovative wind cup design is used under license from SailTimer Inc.

Does it have Wifi connectivity for remote tracking?

OpenWind only connects via Bluetooth, as it is designed to be a low power consumption device and Wifi demands a lot of energy to run.

Does the "open" mean it is open source for developers?

The “open” mean it is open to most smart devices available on the market, so sailors that have no marine displays or a battery on board can still have wind information by simply using a smartwatch, tablet, or smartphone. We have a developers kit for whoever wants to program your own system (in a raspberry pi for example). 

Does it works on a rotating mast?

We have a solution for rotating mast angle compensation. OpenWind has an in-built compass and our application takes in consideration the compass variation between phone and the OpenWind to give you the correct heading and wind direction. For it to work properly, the phone needs to be mounted on the boat aligned with it’s heading.

The NMEAki™ with in-built compass can also compensate mast rotation.


What's the status of my order?

We will send you a shipping confirmation email with a tracking link where you can see the status of your delivery.

Can you ship internationally?

Yes we are shipping it internationally. You can check on our store if there is a shipping option to your location.


What payment options do you offer?

We offer Paypal, credit card and direct bank transfer as a payment option.

How can I use a voucher/discount code?

After you have added your items to your cart, please select proceed to checkout. You will have the option to add your discount or promo code to your order. Please bear in mind, only one discount code can be redeemed per order.


Device is not connecting

Make sure the device is switched on. The LED will then blink every 10 sec in blue colour. Check if the Bluetooth on your device is enabled and the app has privileges to use it.

Restart the application and try to connect within 50 meters.

If the device blinks red when switching it on, but it is not blinking blue every 10 seconds it means the battery is low. Leave it on the sun until it blinks blue, then try to connect it again.

contact us for further support.

Still need help? Send us a note!

For any other questions, please write us at or use our contact form

022032051 041

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