CSL Installers

At MES Systems, we proudly partner with CSL, a leader in transitioning from wired to wireless connectivity. Established in 1996 as a UK alarm signalling provider, CSL now manages over 2.5 million connections, supporting mission-critical IoT applications across Europe. Recognizing the critical importance of security and reliability for mission-critical users, CSL’s expert team continuously innovates to deliver resilient and cyber-secure connectivity solutions. Our partnership ensures top-tier critical communications in sectors such as security, telecare, critical national infrastructure, automotive, and retail. CSL is the manufacturer of the monitoring hardware we most commonly install, including the GradeShift Pro 2 alarm signalling device.