A voltage monitor is a device that plugs into the wall and measures how much electricity is being used. It can help you save money on electricity by alerting you when appliances are using too much power and need to be turned off. Voltage monitors are not expensive, so it's worth purchasing one if you want to make sure your commercial refrigerators and freezers are running efficiently in Palm Beach County, Broward County, and surrounding South Florida areas. Here's how to install a voltage monitor: - Find an outlet near where your refrigerator or freezer is plugged in (preferably close enough so that the cord from the monitor will reach). - Plug the monitor into this outlet with an extension cord if necessary, then plug both ends of another extension cord into different outlets at opposite ends of where these two outlets meet (this way there won't be anything blocking access). - Turn everything back on again!