I am using it with the iPhone app, which is now updated with high/low threshold alarm settings , but have only used it to read the voltage before plugging in. I downloaded the Power Watchdog app and set it up at home first using a 15A adapter plug , but at the camground I had to use the app and the phone to scan the barcode on the side of the surge protector again to connect to Bluetooth because my IPhone does not save it to My Devices under Bluetooth settings. That's a little tricky in full sunlight , you just have to position yourself (or your wife) to cast a shadow on the barcode. Walking around the campsite the app chirps an alert whenever it disconnects or reconnects to Bluetooth, which always happens when sitting outside by the awning with the motorhome positioned between the phone and utility post.
The LED indicators on the surge protector for open neutral, open ground, and reversed are super BRIGHT and easy to see , even in full sunlight. If you are out for a stroll after dark and get lost just look for the 3 green LED' s . An additional indicator says to contact Hughes if it is red (presumably to replace the surge protection fuse?)
The female connector has a grip handle that could also be used to lock it to the shore power cord with a long padlock, which I will to do because I like my 30A Power Watchdog
