Compact, sleek design Instant notification of panel loss of supervision Easy system arming/disarming via SMS Report alarms via text messages to up to 16 mobile phone numbers Easy installation with 4-wire serial connection Supports 2 GSM provider SIM cards for provider redundancy Tamper switch support Optional rod antenna can be mounted up to 18 meters (60 feet) from the module using an antenna cable extension, depending on local signal strength In GPRS mode, messages are protected by 128-bit (MD5) and 256-bit (AES) encryption.