Overview Reviews Product Description Functional Devices - LonWorks Dual I/O Device, One Binary Output, One Binary Input, 24 Vac/dc or 120 Vac Power Input, NEMA 1 Housing Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Functional Devices Functional Devices RIBTW2401B-LN Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments