Do I require any additional hardware apart from what comes with the PowerX Electricity Sensor?Updated 3 months ago

Note: Electrical panels contain high voltage and pose a risk of electrical shock or worse. PowerX Electricity should be installed by an electrician or qualified professional in compliance with all applicable local codes. 

Other than requiring at least one PowerX Hub, the PowerX Electricity comes with everything you need to have it installed and set up to monitor one electrical panel.