Dynon Avionics has released a technical service bulletin that pertains to their Heated AOA/Pitot Probe. If you own this product, please read the service bulletin it in its entirety. In addition to the technical details, there are some important topics covered in the Frequently Asked Questions section after the bulletin that will answer many of the questions you may have. Note that they are not issuing a product recall at this time. Heated AOA/Pitot Probes that are currently installed in aircraft may continue to be used, subject to the Operating Recommendations section in the service bulletin.