GSM & GPRS Modems

GSM and GPRS modems are network hardware devices that send and receive data through radio waves.

GSM and GPRS modems can be PC cards or external units. An external unit is connected to a PC through a serial cable, USB cable, Infrared or Bluetooth. Like GSM and GPRS phones, they require a SIM card from a wireless network provider to operate.

How do GSM and GPRS modems work?

GSM and GPRS modems support an extended set of AT command sets (Attention command sets) used to activate certain features on the modem. The command sets are machine instructions which allow you to do things like:

  • Read, write and delete Short Message Service (SMS) and Multimedia Messaging Service (MMS) messages
  • Monitor signal strength
  • Monitor the charge level and charging status of the battery
  • Send SMS and MMS messages
  • Read, write and search phonebook entries

What are GSM and GPRS modems used for?

GSM and GPRS modems are used to remotely manage installed equipment such as traffic counters and fire alarm panels. Other examples of applications include:

  • Automated meter reading
  • Oil pressure monitoring
  • Vending machines
  • Cable replacement

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Description Price Supported Frequency Bands Interface Antenna Connector SIM Socket Dimensions Weight Depth Height Maximum Operating Temperature Maximum Supply Voltage Minimum Operating Temperature Minimum Supply Voltage Width
RS Stock No. 185-3054
Mfr. Part No.ZETA-NLP-LTEM(EU)
BrandSiretta
€145.80
Each
units
GPRS) MHz, 850 (GSM, 900 (GSM, 1800 (GSM, 1900 (GSM RJ12, RS232, SIM Card, SMA Antenna Connector, USB 2.0 SMA Yes 93 x 28 x 67mm 90g 28mm 67mm +85°C 12V -40°C - 93mm
RS Stock No. 176-7059
Mfr. Part No.ZETA-N2-GPRS STARTER KIT
BrandSiretta
€259.19
Each
units
850 MHz, 900 MHz, 1800 MHz, 1900 MHz - - Yes 68 x 28 x 93mm 101g 28mm 93mm +85°C 42V dc -40°C 5V dc 68mm
RS Stock No. 210-0853
Mfr. Part No.453-00011-K1
€146.82
Each
units
1, 2, 3, 4, 5, 8, 12, 13, 20, 28 - - Yes 30.51 x 49x 4.58mm - - - - - - - -
RS Stock No. 185-3053
Mfr. Part No.ZETA-N-LTE(EU) STARTER KIT
BrandSiretta
€298.98
Each
units
GPRS) MHz, HSPA+) MHz, 800 (LTE) MHz, 900 (GSM, 900 (LTE) MHz, 900 (UMTS, 1800 (GSM, 1800 (LTE) MHz, 2100 (LTE) MHz, 2100 (UMTS, 2600 (LTE) MHz - SMA Female Yes 93 x 28 x 67mm 104g 28mm 67mm +85°C 12 (Nominal)V -40°C - 93mm
RS Stock No. 124-8728
Mfr. Part No.LC300-UMTS
BrandSiretta
€275.89
Each
units
2.1 (3G) MHz RS232, USB 2.0 SMA Female Yes 67 x 93 x 28mm - 93mm 28mm +75°C 42V dc -30°C 6V dc 67mm