This RS232 based modem is suitable for Remote Link and SP LINK over a landline.
Available pre-programmed for either SA Series, SP PRO or PS1/PSA settings.
Next-G Modem
Most suited when there is no available landline.
This modem is also pre-programmed for either SP PRO or PS1/PSA settings, and only requires SIM card configuration by the installer.
USB to Serial Adaptor
If your PC does not come with a COM port you may need a USB adaptor, unless you are using the PC's inbuilt Bluetooth to connect to one of the above serial adaptors.
This particular device was selected as it works well without dropping data packets, which many cheap units do.