Description Product Reviews 18/8 Security Cable Stranded CMR Riser Alarm Audio Signal 1000′ CMR Riser Rated 18 AWG 8 Conductor Security Alarm Cable is made with 7 stranded bare copper conductors. It is unshielded with a CMR rated jacket. Our Security Alarm Cable is available in 1000 ft. increments and is made in the USA. CMR Roser 18/8 1000ft Pro-Installer Series CMR,CL2 Rated for RISER Applications Professional Use Quality Stranded Copper Wire Conductors 0 Reviews Hide Reviews Product Reviews