Item arrived on schedule and does what it advertises however the packaging was in bad shape and the item had clearly been opened previously and likely returned. Because it does what I need I dont really care what I would have given it a higher rating if it arrived in new condition as advertised.

All good

It was good item an works as it says

I like that it was easy to read and know that I was good to power up my coach. I didn’t appreciate the lock though. When it was time to shut down it took many attempts to get it to unlock. So many so that I almost cut the lock off.

This works exactly like a standard outlet polarity/ground checker, with the added benefit that it provides surge protection and that it is in line with your power source. Installation of this is quite simple, just plug this into the power source you will be using for your trailer/RV, read the lights to determine if there are any issues with the electrical, then plug in your RV/trailer power electrical cord into the device of all is ok, at which point you are also getting surge protection. It comes with a lock/cable to secure the device but I frankly dont see the value in it. If someone is going to get close enough to steal this from my trailer/RV, the lock/wire will not be enough of a deterrent, in my opinion. One item that was a bit of a mystery to me is that it came with a large clear plastic bag, not entirely sure what this was for since no instructions are included beyond whats on the sticker of the plug, and box.

Médium

Jusr in case of a surge or wrobg pilarity. A must have when you go to an RV park and use their electricity.

It works very good

Good product and good price

Nice unit, I like the rain cover and lock.