M031-A,COM.LTE 4G MODULE SIM7600G
M031-B,COM.NB-IOT MODULE SIM7020G
M031-C,COM.LORAWAN 868MHZ ASR6501
M031-C3,COM.LORAWAN915 US ASR6501
M031-C4,COM.LORAWAN 868MHZ ASR6501
M031-D,COM.GSM MODULE (SIM800C) WITH AN
M031-E,COM.LTE DATA MODULE(A7600C)