Functional Devices RIBLB-2 SKU: RIBLB-2 $94.40 $188.80 Quantity -+ Add to Shopping Cart Limited Factory Stock Details Functional Devices RIBLB-2 : Enclosed AHU Fan Safety Alarm and General Purpose Logic Board, 24 Vac/dc Power Input, 2 Alarm Inputs all with N/C outputs... Data Sheet DetailsData Sheet Back Functional Devices RIBLB-2 : Enclosed AHU Fan Safety Alarm and General Purpose Logic Board, 24 Vac/dc Power Input, 2 Alarm Inputs all with N/C outputs, Made in USA, UL Listed Back