The Marantec 166590 relay is used with the Marantec 166589 video verified relay system. The relay tells the system if the garage door is open or closed. Use this relay to add additional doors to your system.
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The Marantec 166590 relay is used with the Marantec 166589 video verified relay system. The relay tells the system if the garage door is open or closed. Use this relay to add additional doors to your system.