Functional Devices RIBLB-6 SKU: RIBLB-6 $142.95 $285.90 Quantity -+ Add to Shopping Cart Limited Factory Stock Details Functional Devices RIBLB-6 : Enclosed AHU Fan Safety Alarm and General Purpose Logic Board, 24 Vac/dc Power Input, 6 Alarm Inputs all with N/C outputs... Data Sheet DetailsData Sheet Back Functional Devices RIBLB-6 : Enclosed AHU Fan Safety Alarm and General Purpose Logic Board, 24 Vac/dc Power Input, 6 Alarm Inputs all with N/C outputs, Made in USA, UL Listed Back