Power Watchdog PWD50EPOH 50 Amp Smart RV Hardwired Surge Protector - Emergency Power Off (EPO) – Bluetooth Monitoring - Replaceable Surge Module - LED Diagnostics - Durable for RV Campsite Use

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.

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!

30A Easy to install for those handy and willing to work with electrical. I wish the watchdog app would keep track of the numbers, atleast for like a day would be cool. Otherwise I like it. I'll be getting a 50A soon when I upgrade my rig.

I installed inside the camper. That was some work but only because of the tight space I was in. Once in it started working as expected. The Bluetooth hookup to see my power status is great. Not going back againUpdate after one month of use. I’ve had zero issues with it. Having read other reviews, I suspect that there certainly could be some bad units out there that need replacement. However, I also question people who claim that the unit keeps shutting everything down. None of the reviews mentions what the line voltage was prior to the shut down. I’ve been in parks that had poor voltage and transformers not up to the task of supporting the number of lines on the park.This unit lets me monitor my line voltage and hertz and I see the impact of increase the load on the overall voltage. As a result, I’ve been able to make quick adjustments, such as shifting the water heater from electric to gas, to help balance the power consumption in my trailer. None of this is difficult, it just takes a little self education on the nature of electricity, which, I’m sorry to say, many people are woefully uninformed. So I certainly do agree that there could be defective units, but there are some of these reviews that I’ve read that certainly suggest that the voltage was not going to support what they wanted to do in the first place. Using the Watchdog you can learn quickly about the nature of the electric hook up at your trailer and optimize your power use