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 Wiser Smart Plug LED behaviour guide 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) Can I plug any electrical device to the Wiser Plug? Do Wiser Radiator Thermostats fit on all radiator valves? Can I use the Wiser plug outdoors? Comments 0 comments Please sign in to leave a comment.