Product Images are shown for illustrative purposes only and may differ from actual product.

SIM900A RS232 GSM Modem

  • Stock: 1

    Availability: InStock priceValidUntil: 2026-03-27

  • SKU: 2392 | DAB340

Availability: InStock priceValidUntil: 2026-03-27

  • Rs. 990.33 (inc GST)
    Rs.839.26 + GST

    Qty :

GST Invoice: Available for all purchases — eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need more quantity or not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

SIM900A RS232 GSM Modem

This is a low cost SIM900A GSM Modem with RS232 output.

It works on 12Volt AC as well as DC Supply. It is a Quad Band GSM/GPRS engine and works on frequencies  850/ 900/ 1800/ 1900 MHz. The modem has RS232 output so you can directly connect to PC's com port or to any micro-controller via MAX232 IC. 

You can communicate with this modem using AT Commands. It also has provision for TTL output so you also connect it directly to your micro-controller via serial port.

We have Various sizes of GPS-GSM Module. Check out our complete collection of GPS-GSM Module.


If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

Features of SIM900 GSM Modem

  • Quad-Band GSM/GPRS  850/ 900/ 1800/ 1900 MHz  
  • RS232 interface for direct communication with computer or MCU kit
  • Configurable baud rate
  • SMA connector with GSM Antenna. 
  • SIM Card holder. 
  • Built in Network Status LED  
  • Inbuilt Powerful TCP/IP protocol stack for internet data transfer over GPRS.
  • Normal operation temperature: -20 °C to +55 °C
  • Input Voltage: 5V-12V DC

SIM900 GSM Module Specification

  • Quad-Band 850/ 900/ 1800/ 1900 MHz
  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Class 4 (2 W @ 900 MHz)
  • Class 1 (1 W @ 1800MHz)
  • Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands)
  • Supply voltage range : 3.4V to 4.5V
  • Low power consumption: 1.0mA(sleep mode)
  • Operation temperature: -40°C to +85 °C

Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (0)

Write a review

Note: HTML is not translated!
    Bad           Good
CAPTCHA verification code

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
Do you ship all over India?
Yes — we dispatch orders across India.
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
Do you accept bulk / OEM orders?
Yes — we handle bulk orders and OEM supply requests across India. Share part number and quantity for a quote.
Do you supply branded parts (Texas Instruments, ST, Vishay, etc.)?
Yes — if a brand/manufacturer is listed on the product page. If not listed, share the exact manufacturer + part number and we’ll check sourcing options.

NEW Products

Product Page : New Products

PIC16F628

PIC16F628PIC16f628 Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology16 I/O pins with..

Rs.160.48 (inc GST)
Rs.136.00 + GST

SKU: 152 | DAA304
Stock: 17

TM1635 LED Driver Control And Keyboard Scanning IC

TM1635 LED drive ControlTM1635 LED Driver Control And Keyboard Scanning ICTM1635 is a dedicated circ..

Rs.28.32 (inc GST)
Rs.24.00 + GST

SKU: 3876 | DAG570
Stock: 50

Nextion Intelligent NX4827P043-011C 4.3" Capacitive Touchscreen Display

Nextion NX4827P043-011C 4.3" Intelligent Capacitive Touch Display NX4827P043-011C 4.3" Intelligent T..

Rs.5,726.99 (inc GST)
Rs.4,853.38 + GST

SKU: 2873 | DAE526
Stock: 20

LM335 precision temperature sensors

LM335 Precision Temperature Sensor for Accurate Measurement LM335 precision temperature sensor for ..

Rs.41.30 (inc GST)
Rs.35.00 + GST

SKU: 7223 | DAH086
Stock: 2

Have You Seen

Product Page : Have You Seen

Waveshare Industrial USB TO TTL Serial Cable, Original FT232RNL for Raspberry Pi 5

Waveshare Industrial USB TO TTL Serial Cable, Original FT232RNL for Raspberry Pi 5 Waveshare USB TO ..

Rs.880.29 (inc GST)
Rs.746.01 + GST

SKU: 10438 | DAJ497
Stock: 5

AD5258BRMZ10-R7 6-Bit Digital Potentiometer IC

AD5258 6-Bit Digital Potentiometer IC AD5258BRMZ10-R7 6-Bit Digital Potentiometer with 256 positions..

Rs.213.58 (inc GST)
Rs.181.00 + GST

SKU: 7238 | DAG886
Stock: 50

DFRobot Non-contact Capacitive Liquid Level Sensor for Container OD M11mm

DFRobot Non-contact Capacitive Liquid Level Sensor for Container OD M11mmNon-contact sensor for liqu..

Rs.1,382.00 (inc GST)
Rs.1,171.19 + GST

SKU: 10351 | DAJ183
Stock: 5

USB ASP Programmer

USB ASP ProgrammerThese AVR programmers are based on Thomas Fischl's USBasp design and connect to yo..

Rs.251.34 (inc GST)
Rs.213.00 + GST

SKU: 690 | DAA958
Stock: 4

Related Products

RC522 Mifare Reader Writer

RC522 Mifare Reader Writer

RC522 IC Brief IntroductionMFRC522 is a very compact MIFARE Reader/Writer for 13.56MHz contact less ..

Rs.82.60 (inc GST)
Rs.70.00 + GST

SKU: 539 | DAB402
Stock: 5
MICRO USB to DIP

MICRO USB to DIP

Micro USB to DIP Converter Micro USB to DIP Converter for easy connection, FR4 material, and compact..

Rs.40.12 (inc GST)
Rs.34.00 + GST

SKU: 2089 | DAB076
Stock: 16
3 Pin Female Right Angle Screwable Plug 5.08mm (Combicon Connector)

3 Pin Female Right Angle Screwable Plug 5.08mm (Combicon Connector)

Connectors and Cables 3 Pin Right Angle Screwable Plug XY-2500 F-B 5.08 series 3 Pin Right Angle fe..

Rs.17.35 (inc GST)
Rs.14.70 + GST

SKU: 2732 | DAE244
Stock: 20
LM2596S 5 Volts fixed Voltage Converter (TO-263)

LM2596S 5 Volts fixed Voltage Converter (TO-263)

LM2596 Voltage Regulator 5 Volt TO-263LM2596 5V Voltage Regulator, Step Down design, 1A output, exce..

Rs.50.15 (inc GST)
Rs.42.50 + GST

SKU: 2762 | DAE292
Stock: 100
IRF3710 N-Channel MOSFET (Doingter)

IRF3710 N-Channel MOSFET (Doingter)

IRF3710 N Channel Power MOSFETIRF3710 N-Channel Power MOSFET - 100 Volts, 57 Ampere in TO-220 P..

Rs.36.11 (inc GST)
Rs.30.60 + GST

SKU: 2851 | DAE545
Stock: 10
USB Male to DIP 2.54mm 4 Pin Converter Board

USB Male to DIP 2.54mm 4 Pin Converter Board

USB Male to DIP 2.54mm 4 Pin Converter Board USB Male to DIP 2.54mm 4 Pin Converter BoardUSB Male to..

Rs.28.32 (inc GST)
Rs.24.00 + GST

SKU: 3248 | DAD405
Stock: 45