Control Freq 3G GSM auto-dialler systems are SIM connected to bring cloud monitoring to virtually for an unlimited variety of applications. Typical applications are intruder or fire alarms however many customers monitor mission-critical plant, machinery and technical systems. It could be a stand-alone water sensor or relay contact from a 3rd party control system. If you're looking to monitor something remotely, you're in the right place! Call our 7-day technical desk on +44(0)20 3478 0786 to discuss your application.