Standard BL Recessed Edgelit Aluminum Exit Sign Single Face Green Letters Clear Panel Black Trim Plate AC Only (RELZXTE1GCB2C 120V WM USA) backorder1428 The internal electro chemical sensor communicates S99420040 The internal electro chemical sensor communicates with a sophisticated on board microprocessor that accurately tracks CO levels over time Pass And Seymour 48 Port CAT6 Universal RM Patch Panel (48845CC6) Standard BL Recessed Edgelit Aluminum Exit Sign Single Face Green Letters Clear Panel Black Trim Plate AC Only (RELZXTE1GCB2C 120V WM USA) Dual Circuit Operation With 120V Input No Self Diagnostics Wall Mount Assembled In USA No Custom Wording