GSM LTE 4G 5G Diesel Air Heater 12V 24V 8KW for Motorhome Parking Caravan Camper
(（This is GSM Diesel Heater, not Bluetooth Heater). Type approved GSM LTE 4G Diesel Air Heater ( SIM card not included). The GSM diesel heater has a sim card, which allows the phone and the heater to communicate.