Overview Reviews Product Description 3S FFRT. RECOMMENDED FOR CONTINUOUSLY OPERATED BURNERS. USE WITH C7012E,F SHUTTER CHECK FLAME DETECTORS.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 R7847C1005/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments