Functional Devices RIBMNLB SKU: RIBMNLB $120.50 $241.00 Quantity -+ Add to Shopping Cart Limited Factory Stock Details Functional Devices RIBMNLB : 2.75" Track Mount AHU Fan Safety Alarm Circuit, 24 Vac Power Input, Made in USA, UL Listed Data Sheet DetailsData Sheet Back Functional Devices RIBMNLB : 2.75" Track Mount AHU Fan Safety Alarm Circuit, 24 Vac Power Input, Made in USA, UL Listed Back