I use a 50 amp Nature's Generator transfer switch with their provided inlet box, but then the connection from my Ecoflow Ultra to the inlet receptacle was finicky and actually burned transformers on our furnace, microwave, several light bulbs, and caused a kitchen outlet to catch on fire. When we switched to generator power, the symptoms were flickering lights and sounds of outlets popping. It turns out we have to push the connection *completely* in before twisting to lock, otherwise it might cause an open neutral causing 240V to run across our appliances. I didn't want to take the risk of someone accidentally knocking the cable loose and causing the same issue, so I bought a bunch of plug in low/high voltage detectors for every major appliance and this device as well for two layers of safety.When I called the manufacturer's number to ask device could be used for residential purposes, both times the sales people said this couldn't be used for 240V since it was designed for 220V. That sounded off though because surely 220V was a vestigial term since almost all grids (including RV pedestals I presume) in the US use either 120/240v instead of 110/220V like in the past. Also, most screenshots of the app I saw 120V across both legs. Still doubtful of their claim, I called their technical support line and the guy on the line quickly confirmed that it could be used for 240V.Anyways, I got the device, bought some 3/4 inch conduit and 4x 6 gauge wire and then I wired it all up where my existing inlet box was. I used male adapters at the end of the conduit so that it could fit into the plastic covers of the terminals. I removed the rubber bushings (?) to allow it to fit. Note that power goes from the bottom (input) and then out to the top (output). I quickly got an E7 error (missing ground), which my electrician neighbor quickly fixed by using a small wire to bond neutral and ground in the inlet box. This is because my Ecoflow system is a floating neutral system. I also bought an actual neutral/ground bonding plug to plug into my Ecoflow Ultra inverter as well. After that, it worked great! I tried shaking the connection loose and you can hear a pop as the connection got shut off immediately once it detected a fault and the watchdog face turning red.I'm uploading a photo of the setup here because there was literally no images/videos of the Gen2 bluetooth + wifi 50 amp hardwire version anywhere online. I like the Gen2 because it actually has plastic covers of the terminals, which makes it a bit safer and more professional looking. Hopefully this helps others as well!

As an industrial mechanic/electrician I am seriously impressed with the quality of this unit. From the packaging, to the wire terminals and 2 sizes of cable clamps. I would expect this kind of quality to cost much more. So far everything is working as it should and I would definitely recommend.

Great upgrade, easy install and gives great piece of mind with both the surge protection and power monitoring via the app. Wish it was wifi as well as Bluetooth.

I like many things about the Power Watchdog, and the Bluetooth phone app works well (I use Android). The reason for only four installation stars is that there is an issue that Hughes needs to improve. My unit is the PWD50-EPO-H, i.e., the hardwired model. I followed the included wiring diagram, but with some trepidation because the bottom = input, top = output was opposite from the charts and documents on Hughes' website (which last week when I looked had bottom = output, top = input). I emailed them but by the time I received a reply, I had posted this review.My email asked why such a change was not described in the materials I received or on their website. Adding to the confusion, my hardwired unit's in/out polarity is opposite to the plugged units. While doing the installation, I noticed that 'IN' or 'OUT' is embossed in the black plastic of the wiring blocks; it is hard to see unless you shine a bright light on them. I was relieved that the embossed IN and OUT matched the wiring diagram supplied with the unit. Open and adequate documentation of significant changes, such as power polarity, will generally experience fewer customer returns! All good product manuals include a 'change table' to check the unit's serial number. vs. any changes that the installer needs to know about. If I hear from Hughes that they have resolved this product changes/documentation problem, I will consider updating my review. Besides this, the product already saved my RV from a potentially harmful, albeit transient, situation in my shore power connection by shutting off the power and displaying an error code, power returning automatically once the PWD determined the problem had been resolved.Addendum:I heard back from Hughes. The company changed the IN/OUT orientation of the hardwired 50 A Power Watchdog (model PWD50-EPO-H) to IN=bottom and OUT=top due to popular demand! Moreover, wiring the unit 'backwards' would not usually damage it, but neither will it work unless wired correctly to shore power. The change to the new OUT=top orientation was beneficial for my setup. If that had not been the case, I would have needed a longer OUT power cable to the breaker panel, although I could have achieved the same by mounting the unit upside-down, albeit making the 7-segment LED error readout more challenging to read. The Hughes representative said the PWD50-EPO-H documents on the Hughes website should have been updated to reflect the IN/OUT change.Victron Compatibility:I asked the Hughes representative about the following cryptic comment on their website:****[PWD50-EPO] May not be compatible with Victron Multiplus 2 invertersHe explained that if you use the PWD50-EPO between the Victron MultiPlus-II inverter & charger 3000 VA, 2x120 Volts AC, 70 Amp charger (3000/70-50 2x120V Multi-II) and an RV, the way that this inverter starts up is detected by the PWD50-EPO as a fault. The solution is to place the inverter after the PWD50-EPO. While this cannot protect your RV from abnormal inverter operation, such Victron behavior is unlikely because of the inverter's protection circuits.

Very easy to install, a little big but not that much of an issue.

Replaced a other brand non-Bluetooth surge protector. I like that it doesn’t take 128 seconds to engage.Fairly large, but works well and no humming contactor.

Happy with my purchase. The unit works as advertised. Customer service has outstanding response time, which I found great. Had no clue low voltage was an issue in campgrounds before installing this unit. Worth the investment to protect the RV.

Installed a hardwired unit today - in the end I decided to put a plug on either side of it in case it give me issues I can just plug the main power line back together and remove the device to service. I stuffed it in a pretty tight space and so far it seems to be working. I had issues with getting the terminals to hold the incoming wires - braided cable but I think I got it nice and tight now!Bluetooth works to about 60 feet from trailer. Once you are outside that limit you get notifications that the unit is offline which is annoying.Only concern I have is the unit makes a loud popping sound each time power is first connected which kinda freaks me out. Will be contacting the manufacturer on this.I did switch on a few different loads in the trailer and the app does show the amps drawn which is kinda cool. All in all what I want is protection from crappy park power and although quite expensive, I think this will do the trick.It is much bigger than I thought it would be though. Tough to find a home but still nice that it won’t be easily stolen when installed somewhere in the coach!