Elk sales and installation literature for the wireless CO sensor #ELK-6051 mentions (and has pictures of) an “AutoLINK phone diagniostic app”, but I can’t actually find it anywhere. A search of the forum did not turn up any advice. I could not find anything in the Elk Support “downloads” section. There’s no link on the product page for the sensor. And Google Play store search is no help — I just get a bunch of automobile diagnistic tools of the same name.