50 Amp plug-in Power Meter To Measure Power Consumption ?

You can get a regular utility style submeter for under $50.

https://www.gordonelectricsupply.com/index~path~product~part~5952665

But honestly I would trust the existing meter and just make a habit of reading it daily. Keep a log and compare to your bill.

westernrvparkowner wrote:
What are you trying to prevent? It would be beyond the capacity of almost anyone to alter a meter to achieve a consistently higher consumption reading. That would take some extreme technical know how at a minimum. Meters are built to be pretty much tamper proof and the meters used at parks are no exception.
It is possible that park misreads the meter (easy to check, read it yourself) or they may also have additional things running off your meter (even easier to check, unplug your rig and see if the meter continues to run). Now if what you are trying to do is see your usage at any given time, that is a different story.

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........Not trying to Prevent anything or look for defective meters ! I would simply like to be able to have a second opinion for the number of kilowatt hours of power consumed for any given period of time when I'm being charged for my electric usage . I see nothing a matter with that . , JF

look for an elite watt meter. https://www.amazon.com/Efergy-4-0-Wireless-Electricity-Monitor/dp/B001Q1G4WK/ref=asc_df_B001Q1G4WK/?tag=hyprod-20&linkCode=df0&hvadid=309778489815&hvpos=1o1&hvnetw=g&hvrand=2037381743104724069&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9011738&hvtargid=pla-421217890760&psc=1

What are you trying to prevent? It would be beyond the capacity of almost anyone to alter a meter to achieve a consistently higher consumption reading. That would take some extreme technical know how at a minimum. Meters are built to be pretty much tamper proof and the meters used at parks are no exception.
It is possible that park misreads the meter (easy to check, read it yourself) or they may also have additional things running off your meter (even easier to check, unplug your rig and see if the meter continues to run). Now if what you are trying to do is see your usage at any given time, that is a different story.

And when your new meter shows the RV park mischarged you by a dollar do you really believe they will go with your reading? And how many dollars would you need to "save" to pay for the meter?

I have the 30 amp version of this: click here.

With the Blue Tooth technology, the read-outs are shown on my phone. It also sets off a warning when you reach limits. For example, if I reach 30 amps, I get a warning before it trips, or the breaker pops. It's quite interesting to turn on an appliance and watch the usage change.

The 50 amp will show the usage on each leg.

I ended up getting a Progressive portable for 50 amp service, only because I bought the 30 WatchDog 2 weeks before we knew we were going to be getting the new 5er. I decided to keep the 30 amp Watch Dog since I don't have a 50 amp plug at home yet and have to plug into 30 amp anyway. It works pretty nice. When camping with 50 amp service, I'll use the Progressive at the campground. I'm planning on getting a 50 amp plug installed at home, soon.

Maybe they make one just for fifth wheels.