I added this to my RV so that I could tune in TV stations easily. Some Digital TV's do have a signal strength indicator, but not all.  In those instances, this meter comes in handy.There are two minor issues though, and the first one really is not the fault of Winegard, as I am not sure what the solution is.The issue is that prior to going digital, TV stations used their Analog channel number for their identity. For example, a local TV station in my area always calls themselves "Channel 8" in addition to their call letters, which was of course their broadcast channel.But when we went digital, they still use the Channel 8 moniker, but that is no longer accurate as they broadcast on channel 20.  There is the problem. The Winegard Sensar Pro displays the true digital number, so in the above example, I would have to set the display for channel 20 to tune in "Channel 8" to the max signal.Unfortunately, there is no standard cross reference between the old analog and new digital channels, so you have to go to a website such as [...] and enter the station's call letters to get the true digital channel.As I said, there is no real solution, so I don't fault Winegard for that. They display the true digital signal, which is really the only solution.If you are going RV'ing to a specific destination, the easiest thing to do is go to one of the channel identity websites and get the channel information before leaving.The only real improvement I could see is when the device is turned off. Even in the off position, a LED is on. OK, one LED does not take a lot of current - maybe 10mA, but over time, say a week boondocking, that 10mA will result in loss of 2AH of battery power.  And 2AH here and 2AH there, pretty soon it adds up to a significant load.I added a disconnect switch so I could completely disconnect the Sensar Pro so there would be no current drain whatsoever for boondocking purposes. The current drain - even in the off position is the primary reason for 4 stars rather than 5, since at least occasional boondocking is a real possibility for a RV.