[bobbecky]

We used a surge arrester for a long time, thinking I would install an EMS eventually. Well, eventually finally happened, after a voltage problem from a utility problem when a tree fell across the lines. Lost both satellite boxes. After replacing the boxes, I purchased a hardwired Progressive EMS that has the remote display. It has saved our rig a number of times from missing grounds, missing neutral, and bad voltage, high and low. $300 or $400 is chump change compared to the damage that can be done by voltage issues, especially with all the electronics in these rigs that are very sensitive to the slightest voltage deviation. Don't wait until you have experienced several hundred to several thousand dollars of damage that could have been avoided with one of these devices.