Over the years my EMS has saved my rig about a half dozen times by shutting the power off to the MH prior to any damage occurring.
I just sat thru one heck of a T-storm where about a dozen plus lightnings strikes occurred all around the park. During this period my EMS shut the power off to my rig five times. The parks wireless also went down about the same number of times.
If you're thinking about buying an EMS, or if you don't think you need one, all I got to say is right now I'm feeling pretty good about having one on my rig.
Love our Progressive Industries EMS it is the best.
1* DW "Granny"
1* 2008 Brookside by Sunnybrook 32'
1* 2002 F250 Super Duty 7.3L PSD
Husky 16K hitch, Tekonsha P3,
Firestone Ride Rite Air Springs, Trailair Equa-Flex, Champion C46540
"A bad day camping is better than a good day at work!"
Its your RV, so you do what ever makes you happy and what makes you feel safe.
We have had ours for many many years now. And we have moved it from RV to RV.
We coouldn't even count the times ours has shut down the power for one reason or another. From power that has been to low to power that has been to high.
Think of all the money you have invested in your RV and its belonging. Now look at the cost of a good EMS. We think it has been some pretty cheap insurance to keep our RV's in perfect condition.
Our Money, Our Choice. But we would never be without one ever again. For us anyways, thery are worth ever dollar.
Also remember, that the higher the "Jouel Ratings" the better the protection is.
We also, "NEVER" plug our RV into any Power Sorce, wihtout checking and Testing the power itself first.
Even though we have a good EMS, I still keep a "Voltage Meter" plugged it all of the time. So at a glance I can see what the power is reading. As there are times I can catch a low reading while running the A/C, before it can run to low and casue damage the A/C Unit, even before the EMS shuts it down.