Wireless Products - SIMCOM:

SPECIAL OFFER (whilst stocks last)

SIM340DZ GSM/GPRS module - R265.00 incl. VAT, excl. delivery
normal price R345.00


Ideal as a starter for a GSM project, easy to hand solder 1.5mm pitch, ARM7 processor based

Prototype PCB available, supplied populated or not, easy "add-on" to existing projects
Includes RXD,TXD,+4Vdc in, +5Vdc in, network activity LED. PWRKEY P/B and drive circuit, for modem start-up
PCB measures 80mm x 50mm

SIM900TE-EVB EVALUATION KIT INCLUDING THE SIM900 - R792.00 incl. VAT excl. delivery (i.e. a discount of R595.00) !!!

Competitively priced products from SIMCOM, that form the basis of most of all of our product range, are available directly from us.

SIMCOM are internationally rated as the 2nd largest supplier of GSM/GPRS/GPS/EDGE modules in the world.

All SIMCOM products can be supplied with development kits for the design engineer in mind to develop code and interfaces for projects that will ultimately use the product range. These developments kits are excellent and are supplied complete with SIM card holder, 3dB magnetic mount antenna, RS232 cables and PSU - plug and play.

The development kits have full break-out facilities so that all GSM/GPRS/GPS module signals are available for external interfacing. A typical development kit is shown below for the SIM548C.

Development kits are supplied with built-in SIM socket, GSM antenna (plus GPS in the case of the SIM548C), RS232 cable, power supply unit and CD.

Please note that developments kits are not sold with the GSM module and so this has to be purchased seperatly.

Click on the image for a larger version of the EVB

Enquiry for SIMCOM GSM modules and development kits here


SIM900 - GSM/GPRS quad band

The SIM900 is a complete tri-band/quad-band GSM/GPRS solution in a SMT module.Comparison
Image shows approximate actual size of the SIM340DZ (left), the new SIM900
and the new GTOP GPS module (on a R1.00 coin)

SIM900 with a tiny configuration, 33mm x 33mm x 3mm, can fit almost all the space requirements in your M2M applications, especially for slim and compact handset applications.

  • SMT type suit for customer applications
  • An embedded powerful TCP/IP protocol stack
  • Based upon mature and field-proven platform, backed up by our support service, from definition to design and production

General features
  • Tri-band GSM/GPRS 900/1800/1900MHz or Quad-band GSM/GPRS 850/900/1800/1900MHz
  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Compliant to GSM phase 2/2+
     – Class 4 (2W @ 850/900 MHz)
     – Class 1 (1W @ 1800/1900MHz)
  • Dimension: 33mm x 33mm x 3mm
  • Weight: 7.8 g
  • Control via AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT Commands)
  • SIM application toolkit
  • Supply voltage range 3.4V...4.5V
  • Low power consumption 
  • Normal operation temperature: -30 °C to +80 °C
  • Restricted operation temperature: -40 °C to -30 °C and +80 °C to +85 °C
  • Storage temperature: -45°C to +90°C

Specifications for fax
  • Group 3, class 1

Specifications for data:
  • PBCCH support
  • GPRS class 10: max. 85.6 Kbps (downlink)
  • PPP-stack
  • Coding schemes CS 1, 2, 3, 4
  • CSD up to 14.4 kbps
  • USSD
  • Non transparent mode

Specifications for SMS via GSM
  • Point-to-point MO and MT
  • SMS cell broadcast
  • Text and PDU mode

Specifications for voice
  • Tricodec
– Half rate (HR)
– Full rate (FR)
– Enhanced Full rate (EFR)
  • Hands-free operation (Echo suppression)

  • Interface to external SIM 3V/1.8V
  • Two analog audio interfaces
  • RTC backup
  • Serial interface and debug interface
  • LCD interface
  • Keypad interface
  • Antenna connector and antenna pad
  • GPIO

Data Sheet Here 81KB in PDF format
Enquiry for SIMCOM GSM modules and development kits here

SIM908 - GSM/GPRS/GPS - R450.00 incl. VAT, excl. delivery

This recently released module is very competitvely priced and contains both a GSM/GPRS and GPS systems on one module.


SIM908 module is a compact Quad-band GSM/GPRS-enabled module that is also equipped with GPS technology for satellite navigation. The compact design of the SIM548C makes it easy to integrate GSM/GPRS & GPS as an all-in-one solution. You will save significantly both time and cost for the integration of additional hardware components.

Featuring an industry-standard interface and GPS function, the combination of both technologies allows valuable asset to be tracked seamlessly at any location and anytime with signal coverage.

General features
  • Quad-Band GSM 850/900/1800/1900MHz
  • GPRS multi-slot class 10
  • GPRS mobile station class B
  • Compliant to GSM phase 2/2+
     - Class 4(2W @ GSM850/900MHz)
     - Class 1(1W @ GSM1800/1900MHz)
  • Control via AT commands (GSM 07.07 and 07.05 and SIMCOM enhanced AT commands)
  • SIM application tool kit
  • Low power consumption
  • Supply voltage range 3.4…4.5 V
  • Normal operation temperature: -30°C to +80°C
  • Restricted operation temperature: -40°C to -30°C and +80°C to +85°C
  • Storage temperature: -45°C to +90°C
  • Dimension: 50mm x 33mm x 8.8mm

Specifications for GPS
  • Receiver 20 channels, L1 1575.42 MHz, C/A code 1,023 MHz chip rate
  • Accuracy Position 2.5 m CEP
     –without SA/Velocity 0.1 m/s,
     –without SA/Time 1 μs synchronized to GPS time
  • Position with DGPS/SBAS: 2.0 CEP
  • Date WGS-84
  • Acquisition rate (TTFF defined at 95% of first position local station)
     – Hot start < 1 s, average, open sky
     – Warm start: 35 s, average, open sky
     – Cold start: 35 s, average, open sky
  • Support AGPS
  • Operating voltage 3.3 V DC ±5%
  • Low power consumption 160mW at 3.3 V (full power)
  • Protocols
     – NMEA-0183
     – SiRF binary
     – RTCM SC-104
  • Crystal oscillator (TCXO), temperature compensated with frequency stability of ±0.5 ppm
  • Memory 4 Mb flash and 1Mb SRAM

  • 60-pin DIP connector
  • Interface to external SIM 3V or 1.8V
  • Dual analog audio interface
  • AT commands via serial interface
  • Embedded SIM card holder
  • LCD Interface
  • RTC Backup
  • Charge interface
  • Serial interface and Debug interface
  • Dual serial interfaces for GPS
  • Two separate antenna connectors for GSM/GPRS & GPS and two antenna pads for GSM/GPRS & GPS

Enquiry for SIMCOM GSM modules and development kits here




SIM5218E is a WCDMA/HSDPA/HSUPA/GSM/GPRS/EDGE module solution which support up to 7.2Mbps downlink speed and 5.76Mbps uplink speed data service. It also has strong capability with rich interfaces including UART, USB2.0, embedded SIM Card, SD Card, camera sensor, GPS, I2C, GPIO, etc.

Module has high speed HSDPA/HSUPA functionality and strong capability in extension, SIM5218E is ideal for a wide arrange of products including USB modems, gateways, routers, PDAs, Video Phone.

Advanced Features:
• Tri-band UMTS/HSDPA/HSUPA, 850/1900/2100 MHz or 900/1900/2100 MHz
• Quad-band GSM/GPRS/EDGE, 850/900/1800/1900 MHz
• HSDPA 7.2Mbps
• HSUPA 5.76Mbps
• USB 2.0 high speed or UART
• Embedded SIM card (option)
• A-GPS/ S-GPS positioning
• Video call with camera sensor interface
• WCDMA equalizer
• WCDMA diversity

Data Sheet Here 46KB in PDF format
Enquiry for SIMCOM GSM modules and development kits here


SIM5220 - PCI Express Mini-Card module for HSDPA, 3G and EDGE - R975.00


The SIM5220 is a powerful PCI Express Mini-Card module which is embedded into laptop or PDA for high speed data connection of HSDPA, 3G and EDGE technology.

With its high speed of up to 7.2Mbps for downlink and 5.76Mbps for uplink the user can enjoy surfing on the internet.

Stand-alone GPS on-board

This module is a drop in equivalent for the Sierra Wireless MC8792V PCI Express modem.

Brochure here 34KB in PDF format

SIM20 - tri-band r.f. transceiver - R165.00 + VAT (w/o antenna)

SIM20 - low cost half-duplex r.f. transceiver data for peer-to-peer and broadcast transmission.

SIM20-EVB, with USB interface - now R165.00


It includes a high-speed microcontroller and high-performance RF chip, ensuring that it has high receiving sensitivity, programmable transmitting power and high data rate. It supports transparent date transfer without complex configuration, with UART (CMOS/TTL), RS232, RS485, I²C/SPI and ADC interfaces.

The module has an input voltage range of 3,3 to 5,5 V. It measures 40 x 20 x 2,8 mm and operates over the temperature range from -20°C to 70°C.

Typical applications include wireless sensors, remote control/security systems, wireless metering, wireless medical telemetry service (WMTS), keyless entry, home automation, and process and building control.

  • 433-434.79MHz, 863-870MHz and 902-928MHz
  • Air data rate 1200-115,200 baud
  • Communication interfaces RS232 (UART CMOS/TTL) / RS485 / SPI / I2C
  • 8E1 / 8N1 / 8N0 check modes
  • 512 bytes of interface buffer
  • ADC input
  • 20mW output power with 10 user-adjustable steps
  • Transmitter frequencies at 200KHZ intervals
  • Modulation schemes 2GFSK
  • Receiver sensitivity -112dBm at 1200 bps
  • 1000M range at 1200bps
  • Sleep current 5µA
  • TX current 35mA at 10dBM, 60mA at 18dBM
  • RX current 28mA
  • Input voltage 3.3 - 5.5 Vdc
  • On-board TX/RX switch - fill TX buffer with data and the module does the rest
  • Small footprint 40mm x 20mm and 2.8mm thick
  • Optional 16-bit RFID
  • ETSI 300-220, FCC Part-15

Enquiry for SIMCOM GSM modules and development kits here


U9-T HSDPA/HSUPA Wireless USB Modem c/w Flash memory option (using Micro-SD Card) - R895.00 + VAT (Normal List Price - R1,275.00 + VAT)

U9-T is a smart wireless modem designed for GSM HSDPA / HSUPA / UMTS / EGDE / GPRS networks to provide high speed connection (7.2Mbps)


The unit is fully plug and play (USB), and has a slot for a micro SD memory card.
Inserting a Micro-SD memory card the unit also functions as a flash disk.
All that is needed for full connectivity is a 3G SIM card.
Individually packed in box with manual and CD.
Can be branded with corporate logo if so desired - optional extra.

Note: Micro SD card and SIM card are excluded.

Data Sheet Here 753KB in PDF format


RS232 GPRS modem, complete and ready to run - R780.00 + VAT

RS232 JD
Complete unit as supplied - RS232 cable, power supply and antenna - ready to go

Front end - showing RS232 and power connections

Rear end - showing the active LED, antenna connection and SIM card slot

A complete ready-to-run RS232 GPRS terminal, supplied complete with power supply and connections, antenna, SIM card holder (excludes SIM card). Uses standard AT commands and can be configured using HyperTerminal or any PC based terminal package. All this for R780.00 !

Data Sheet Here 467KB in PDF format


CCTV CMOS camera for SIM5218 series - R98.00 + VAT

CCTV camera

Available in 0.3MPx and 2MPx formats to suit SIM5218

Use this miniature CMOS based CCTV camera with the SIM5200 series GSM/GPRS modem to obtain the full video call facility.

Data Sheet Here 761KB in PDF format