General questions
Why should I use Atmotube?
First switch-on
What is the difference between Atmotube models?
How often does it take measurements?
What size is it? How much does it weigh?
What is Air Quality Score (AQS)?
Why do I need the app to use Atmotube?
Will Atmotube work with any smartphone?
Can I use Atmotube without the phone?
Why blowing air into Atmotube lowers the AQS number?
So what about barometer and altimeter?
How long will the battery last?
How to turn device off and on?
Where can I locate the Atmotube MAC ID or Serial Number?
In the box
How do I get ahold of your team?
What are the units for parameters measured by the Atmotube PRO?

So what about barometer and altimeter?

Barometer

Atmotube PLUS/PRO has barometer and altimeter functions. The device reports atmospheric pressure and altitude in real time. Atmotube PRO also predicts the weather based on the change in atmospheric pressure according to the algorithm in table below.

Note: A barometer should be adjusted to show equivalent sea-level pressure for the altitude at which it is to be used. A change of 100 feet in elevation will cause a decrease of 1⁄10 inch in the reading.

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Altimeter

The default altitude value is set by the GPS data (if GPS is enabled in the settings).

  • p0 - Calculated mean sea level pressure
  • p - Measured/barometric pressure
  • h - Elevation of measured data
  • T - Measured air temperature

Altitude is also calculated based on the difference between current atmospheric pressure and pressure at mean sea level. Every 8.8 meters atmospheric pressure drops by 1 mbar.

Pressure at mean sea level is received from the weather server based on GPS location. This value can also be entered manually.

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Mean sea level rate calculator (converter)

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Got more questions? We're here to help!

Please contact us at info@atmotube.com or by submitting a support ticket using the form on the following support page:

Do you have customer service and technical support?

You may also use the ATMO Bot (usually on the right-hand side of the webpage on desktop, bottom-left for mobile) for a quick answer or leave your email address so that we may get in touch.