Cellular Modem for 4G suitable for OEG-OMS-CAR21-SULite ONLY. Required only if public cell-phone infrastructure access to the gateway is required, in addition to the Ethernet, WiFi, and RS 485 access built-in. Does NOT include monthly charges levied by carrier for access. Needs OEG-OMS-CMPlan to operate.

One Year Warranty on H/W