Alarm cable / Security/ Alarm Plenum Cable White 4cx 0.22mm2,22gague/26gague/24gaguex 4c, 6c,8c,10c ,12c....20c Alarm cable Feature: High Quality Low ... Voltage Cable for Security/Alarm ApplicationsFire Retardant Plenum Jacket for use ... /Window Sensors, etc.Wooden Spool /plastic spool ,coiled 100Meter , 1000FT security alarm cable