Reviews Pstn Gprs

HiLetgo Smallest SIM800L GPRS GSM Breakout Module Quad-Band 850/900/1800/1900MHz SIM Card Slot Onboard with Antenna 3.7~4.2V

  • Mini GSM / GPRS breakout board is based on SIM800L module, supports quad-band GSM/GPRS network, available for GPRS and SMS message data remote transmission..
  • The board features compact size and low current consumption. With power saving technique, the current consumption is as low as 1mA in sleep mode..
  • It communicates with microcontroller via UART port, supports command including 3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands..
  • AT command interface with "auto baud" detection..
  • TTL serial port for serial port, you can link directly to the microcontroller.
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USR 4G LTE Modem USR-G781 Industrial Celluar Serial Modem Data Converter to Ethernet Support APN and VPN Network

  • Support Dual Frequencies: GSM/GPRS 900/1800MHz.
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Dual Band GSM Modem with Wavecom M1306B Q2406B Module Wireless at Commands Data SMS

  • (4)Working Frequencies: GSM/GPRS 900/1800Mhz..
  • (5)Packing List:1x Modem, 1x Serial Cable,1x Power Adapter,1x Antenna..
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Dual Band GSM Modem with Wavecom M1306B Q2406B Module at Commands SMS 900/1800Mhz

  • (4)Working Frequencies: GSM/GPRS 900/1800Mhz..
  • (5)Packing List:1x Modem, 1x Serial Cable,1x Power Adapter,1x Antenna..
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Dual Band GSM Modem with Wavecom M1306B Q2406B Module at Commands Data SMS 900/1800Mhz

  • (4)Working Frequencies: GSM/GPRS 900/1800Mhz..
  • (5)Packing List:1x Modem, 1x Serial Cable,1x Power Adapter,1x Antenna..
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DIGI XTP9B-PKI-R XTend-PKG-R Serial ~900 MHz RF Modem, 9XTend Replacement, PKG, RS232/485, North America

  • Support Quad Frequencies: GSM/GPRS 850/900/1800/1900MHz.
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Taidacent SIM800L GPRS GSM Module Micro SIM Card Core Board GSM Quad Band TTL Serial Port ESP32 ESP8266 SIM800L

  • SIM800L GPRS GSM module micro SIM core board quad-band TTL serial port is ESP8266 ESP32.
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99 Zones Wireless Home Office House Security Burglar Alarm System PIR Motion Sensor Auto Dialer Password

  • All-in-one Auto Dialing Home Security System.
  • Built-in battery, power failure protection.
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Emergency Wall Telephone Pre-programmed to Auto Dial 911 - RED

  • Auto dials any pre-programmed telephone number (911 as default).
  • Works on any analog phone line (PSTN, VOIP) that is FSK or DTMF compatible.
  • Retains programming even if disconnected from phoneline (EEPROM technology)..
  • Telephone line powered (no external power required)..
  • Easy to install and re-program (Comes with wallplate and do-it-yourself programming instructions).
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RedTagCanada SIM900 Quad Band GSM GPRS Quad-Band Modules 2G Shield Development Board for R3 Mega with Antenna for Arduino SCM & DIY Kits

  • ... - could work on GSM networks in all countries around the world, work with Uno Mega..
  • This is a new version (64M version), SMS support MMS: Multimedia message and Short Message Service - so it is possible to send small amounts of data over the network (ASCII or raw hexadecimal).
  • The shield allows you to get SMS, MMS, GPRS and audio via UART by sending AT commands (GSM 07.07, 07.05 and SIMCOM enhanced to commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module (They are all 2V8 logic) present on board..
  • Application: M2M (Machine 2 Machine) Applications.Remote control of appliances.Remote Weather Station or Wireless Sensor Network.Vehicle tracking system with a GPS module.Good to learn GSM / GPRS mobile phone development, control development of remote equipment, wireless meter reading, smart appliances, ultra long distance control, etc..
  • Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | Enhanced.
  • Power jack - connected to external 4.8~5VDC power supply, Antenna interface - connected to external antenna, Serial port select - select either software serial port or hardware serial port to be connected to GPRS Shield.
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