I don't have a history with this product. But it looks to be a "value added" for a back-up in a panel.....
Demo....
https://www.youtube.com/watch?v=cIHIHAO68j8&t=
Company...
https://360avionics.com/store/index.php?route=product/product&product_id=51
Demo....
https://www.youtube.com/watch?v=cIHIHAO68j8&t=
Company...
https://360avionics.com/store/index.php?route=product/product&product_id=51
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