MiniAir 2 is our single-path signalling solution that utilises a 4G/LTE-M path to signal an alarm from a protected premises to an ARC. It comes with a standby SIM as a backup to safeguard your system, if the active SIM fails. Both SIMs operate on an independent network from the other for total resilience. ​It is designed for both residential and commercial premises as an affordable upgrade from a digital communicator to secure signalling.