Johnson Controls LN-PRG600-12 Programable Controller With 16 UI 12 UO AND LNS Plug-in Wirless The LN Free Programmable PRG 600 Series Controllers are microprocessor-based free programmable controllers, designed to control various building systems, such as multi-zone air handing units and central plant applications. The 600 Series controllers use the LonTalk communication protocol. The PRG 600 Series controllers support up to 2 Input/Output extension modules that operate on a separate sub-network, providing the PRG 600 Series controller with up to 40 universal inputs and 36 universal outputs. The LN Series Free Programmable controllers product family is built to meet rigorous quality standards. The complete family of Metasys system LN Series controllers is designed for use with any LONWLONWORKS network open and interoperable system 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated! Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!