The CMX is Firstech's next-generation hardware that offers maximum flexibility for your business, your installers, and your customers. It represents the universal applications for which this system can be used: security, remote start, or combo. Smarter, Stronger, Faster Upgraded 32-bit ARM processor (CM-7 is 8-bit) and flash storage (256kb) for more advanced programmability, event tracking, and speed. Choose Your Upgrades. The CMX supports all Firstech accessories for universal applications, such as ALARMIT for security and FTI T-Harnesses for remote start.