Overview Reviews Product Description STANDARD. 3S FFRT. RECOMMENDED FOR CYCLED HEATING EQUIPMENT. USE WITH FLAME ROD, PHOTOCELL, OR C7012A,C.Honeywell Process Solutions products are only available in some markets. Please call for more information. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Honeywell Honeywell R7847A1033/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments