# Certification

SmartAP AIRLink has the required RF compliance certificates.

{% hint style="success" %}
Please contact us [here](https://sky-drones.com/contact-us) for certificates pack.
{% endhint %}

## Redundancy

* 3x redundant IMU (accelerometers, gyroscopes, magnetometers) 
* 3x redundant pressure sensors 
* 2x redundant GNSS 
* 3x redundant power supply input 
* Low battery failsafe 
* GNSS loss failsafe 
* Radio link loss failsafe 
* Manual control loss failsafe
* IMU health checker


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