USR-GPRS232-7S3 is a Low Cost UART TTL GPRS/GSM Module, based on USR-GM3 gprs module. Clients can use the product to realize bidirectional transparent transmission from serial port to network through simple AT command. Features of Low Cost Gsm Modules.


  • Input Voltage: DC 5 ~ 16 V
  • Working Current: Average: 35 ~ 48mA, max: 394mA(12v)
  • Operating Temp.: -25 ~ 85°C
  • Storage Temp.: -40 ~ 125°C, 5 ~ 95% RH(no condensation)
  • Support GSM850/900,DCS1800/1900
  • Support GSM/GPRS and 2G/3G/4G card, but don’t support 3G/4G network
  • Support 2 sockets, Support TCP and UDP
  • 4KB cache for each of sockets, user can choose to cache data or not
  • Support register packet and heartbeat packet
  • Support setting parameters via SMS message
  • Support multi work modes: SMS transmission mode, network transmission mode and HTTPD mode
  • Support basic and extend AT command sets
  • Support class RFC2217, can dynamically modify serial parameter of module via network
  • Support flow control: RTS/CTS
  • Package List:

  • 1 x UART TTL GPRS/GSM Module
  • Documents:

  • Hardware Manual V1.2
  • Datasheet
  • Application Software
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    • Product Code: MCC0GM3GP
    • Availability: In Stock
    • $12.80
    • 51 or more $11.80