Smart terminals use China Mobile and China Unicom‘s GSM networks throughout the country to transmit data via SMS.

      The use of short messages to achieve the three functions of remote alarm, remote control, and telemetry, especially GSM short messages, is flexible and convenient, and can be transmitted across cities, provinces, and even transnational countries. 

      Moreover, each short message sent only costs 1 cent, which is very reliable and cheap. 

      Used for status monitoring, used for fire, anti-theft, etc. alarms, and equipment failure reporting.

      Intelligent terminal equipment battery model:524041 3.7V 2000mAh

      Smart terminal equipment battery cell model:524041

      Lithium battery IC: Seiko