bids are invited for optical smoke and heat detector tyco 851ph or 851ph photo smoke and heat detector marine only without base , cim800 or contact input module or cim800mx contact input module , 801phex optical smoke and heat or mubex base for 600 or 800ex , 850h heat detector or 850h heat detector , manual call point indoor or mcp820m marine call point indoor type without back box , 811f-m thorn or 811f mx flame detector , 801phex optical smoke and heat or 801phex optical smoke and heat intrinsically safe detector with base , 5b 5 inch universal base or 5b 5 inch universal base , optical smoke and heat detector tyco 851ph or 851ph photo smoke and heat detector marine only without base or 811ph optical smoke and heat sensor total quantity : 49