4G GPS Tracker Car SOS Alarm Mini Vehicle Tracker Cut Off Oil GPS Locator Waterproof Tracking Move Alarm
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TK319 acts like a LTE modem and responds to AT commands issued to it from either a physical UART port connection or to AT commands issued to it through an SMS, TCP/IP or UDP/IP connection. With regard to text messages, TK319 LTE "reads" all of its own text messages and tries to interpret each message as an AT command. SMS text may be sent to a TK319 LTE through any CSD SMS connection.
Supports GSM/LTE, include 19 bands,universal in the world. (Note:4G LTE Cat M1)
2G: GSM/GPRS: Support GSM 850/900/1800/1900Mhz
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4G GPS Tracker Car SOS Alarm Mini...