Radio-controlled Wind-Sun powered by built-in photovoltaic cells. The sensor is powered by sunlight and communicates via radio with the control unit which controls movement of the shutters according to the pulses received. Energy saving, thanks to the free and clean solar energy. Unlimited autonomy The sensor is powered by photovoltaic cells, providing a reserve of energy and guaranteeing optimum safe management of the automation according to the weather conditions detected. Immediately ready for use, no advance charging required. Programming in linear mode: trimmer adjustment of activation thresholds: "Wind" up to 80 km/h and "Sun" up to 60 k-lux (SI unit of illuminance). Optimised sensitivity to vertical air currents. Control and indicator system A two-colour LED (green and red; lit, off or flashing) provides information on sensor status (set threshold exceeded, malfunctions etc.). Nemo is compatible with Nice tubular motors with built-in receiver & control units with built-in receiver.