Can the Wiser Plug be used on an extension lead? Follow Yes it can, so long as it can maintain a good connection to the Wiser HubR Related articles I bought a smart plug to use as an RF range extender for one of my radiator thermostats. Can I move this plug to another wall socket? (WH) Wiser Smart Plug LED behaviour guide How many devices can one Wiser Plug support as an RF signal range extender? How many ON/OFF events can I schedule per day in my Wiser smart plug? Can I plug any electrical device to the Wiser Plug? Comments 0 comments Please sign in to leave a comment.