Overview Reviews Product Description Controller, Burner, Honeywell, With S7800A1142 Display Module, Valve Proving, Honeywell Part Number RM7800L1087Honeywell 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 RM7800L1087/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments