M1A2 New Generation RV Surge Protector 30 Amp 50 Amp with Waterproof Cover Camper Anti-Theft Circuit Analyzer Tester Plug with UL Tested

Easy to work with. Well built. See how long they last

I got to use this product on my first weekend with my new to me camper. Best product for the ones. It comes with a lock and key, also a cover that fits over the main plus to keep it out of the rain. The best part is that the panel is very easy to read and understand. The corresponding lights and the key are on the same side. It makes checking for surges and connection information easy to see.

When first connected circuit protector showed correct wiring and ground for a few seconds. Then showed open ground after that. Park maintenance replaced 30 amp circuit breaker. Their test showed power was correct and properly grounded. I tested a 120V outlet inside my camper and it showed correct wiring and ground. Next morning this device showed circuit was correctly wired. How do I trust this device will show correct circuit analysis during each future use? I cant so returned.

This product works well and is easy to use

this gives me peace of mind when i am at different campgrounds. it also helps my camper connect better to the electrical than if we hook it up without it.

Like used for rv

There is another photo evidenced 2-star review from another purchaser. I’m sure this review will get buried but this randomly happened during my parents 3-week stay at a lake RV resort. Circuit analyzer melted where my parents RV power cord connected into the analyzer. The resort’s power plug was fine and so was the top plug of the analyzer as evidenced with photos. Did not cut the power when there was an obvious abnormality in the voltage resulting in a burn that ruined the analyzer and parent’s RV power cord. So I do not recommend it for reliability.

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.

Works just as advertised

Worked great. First time using after friends had power problems at a campground