Does the Repeater IRSAP NOW work on batteries or by cable? 27 April 2021 18:27 Updated The Repeater works by connecting to an electrical outlet: Related articles In what cases do I need the Repeater IRSAP NOW? What is IRSAP Repeater? Where should the Connection Unit be installed? I have to change my hydraulic valve (not thermostatized), how can I do it? What is Smart Thermostat? Comments 0 comments Please sign in to leave a comment.