The Landis & Gyr Power Sistem 600 R536-765 SCU Stand Alone Control Unit is a reliable and efficient unit controller. Made by the reputable brand Landis & Gir, With its advanced technology and durable construction, this control unit offers peace of mind and energy efficiency. This is a new old stock item without the original box, still sealed in its anti static bag, please review the pictures. They are of the actual item