--- product_id: 64860279 title: "Elementz Engineers Guild Pvt Ltd SIM900A_GSM_MODEM Sim900A Gsm Modem Module with Sma Antenna" brand: "elementz engineers guild pvt ltd" price: "646 kr" currency: ISK in_stock: false reviews_count: 8 url: https://www.desertcart.is/products/64860279-elementz-engineers-guild-pvt-ltd-sim900a-gsm-modem-sim900a-gsm store_origin: IS region: Iceland --- # Voice Call Support GSM Connectivity Multiple Interfaces Elementz Engineers Guild Pvt Ltd SIM900A_GSM_MODEM Sim900A Gsm Modem Module with Sma Antenna **Brand:** elementz engineers guild pvt ltd **Price:** 646 kr **Availability:** ❌ Out of Stock ## Summary > 📞 Elevate Your Projects with Seamless GSM Connectivity! ## Quick Answers - **What is this?** Elementz Engineers Guild Pvt Ltd SIM900A_GSM_MODEM Sim900A Gsm Modem Module with Sma Antenna by elementz engineers guild pvt ltd - **How much does it cost?** 646 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/64860279-elementz-engineers-guild-pvt-ltd-sim900a-gsm-modem-sim900a-gsm) ## Best For - elementz engineers guild pvt ltd enthusiasts ## Why This Product - Trusted elementz engineers guild pvt ltd brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Works effortlessly with Arduino, Raspberry Pi, and more! - • **All-in-One Functionality:** Call, SMS, and GPRS capabilities in one compact module. - • **Direct Audio Integration:** Connect mic and speaker directly for crystal-clear calls. - • **Enhanced GSM Performance:** Outperforms SIM300 and other GSM modems for your projects. - • **Versatile Communication Options:** Supports RS232, TTL, and I2C for flexible integration. ## Overview The Elementz Engineers Guild SIM900A GSM Modem Module is a versatile and powerful tool designed for GSM-based microcontroller projects. It offers compatibility with various platforms, direct audio integration for calls, and multiple communication interfaces, making it an ideal choice for tech enthusiasts and professionals alike. ## Description Sim900a modem is built with dual band gsm/gprs based sim900a modem from simcom. It works on frequencies 900/ 1800 mhz. Sim900a can search these two bands automatically. The frequency bands can also be set by at commands. The baud rate is configurable from 1200-115200 through at command. The gsm/gprs modem is having internal tcp/ip stack to enable you to connect with internet via gprs. Sim900a is an ultra compact and reliable wireless module. This is a complete gsm/gprs module in a smt type and designed with a very powerful single-chip processor integrating amr926ej-s core, allowing you to benefit from small dimensions and cost-effective solutions. Sim900a features - gprs multi-slot class 10/8 - gprs mobile station class b - compliant to gsm phase 2/2+ - class 4 (2 w @850/ 900 mhz) - class 1 (1 w @ 1800/1900mhz) - control via at commands (gsm 07.07, 07.05 And simcom enhanced at commands) low power consumption: 1.5Ma(sleep mode) operation temperature: -40°c to +80 °c specifications for gprs data : gprs class 10 max. 85.6 Kbps (downlink) max. 42.8 Kbps (uplink) pbcch (support packet switched broadcast control channel) support coding schemes cs 1, 2, 3, 4 specifications for sms via gsm/gprs - point to point mo and mt - sms cell broadcast - text and pdu mode software features - 0710 mux protocol - embedded tcp/udp protocol - ftp/http - fota - mms - embedded at compatibility: at cellular command interface sim900a rs232 + ttl board features input voltage: 12v on board power led on board network led rs232 serial control (tx and rx) modem reset pin out default baud rate: 9600. Databits: 8, parity: none, stop bit: 1 pcb board specifications material: fr4 (high quality) board thickness: 1.6Mm. ## Features - Please buy original product from elementzonline store, Compatibility: AT cellular command interface - Compatible with arduino, raspberry pi, arm, avr, pic, 8051, etc - Best suited for gsm based microcontroller projects (better than sim300 and other gsm modems) - Option for connecting mic and speaker directly to gsm modem for calls (line in also available) - Supports communication through rs232 with db9 connector, ttl pins and i2c pins - call sms gprs facility - mic input, line input and speaker output pins ## Images ![Elementz Engineers Guild Pvt Ltd SIM900A_GSM_MODEM Sim900A Gsm Modem Module with Sma Antenna - Image 1](https://m.media-amazon.com/images/I/61aOeOkfKmL.jpg) ![Elementz Engineers Guild Pvt Ltd SIM900A_GSM_MODEM Sim900A Gsm Modem Module with Sma Antenna - Image 2](https://m.media-amazon.com/images/I/61nODoh8ncL.jpg) ![Elementz Engineers Guild Pvt Ltd SIM900A_GSM_MODEM Sim900A Gsm Modem Module with Sma Antenna - Image 3](https://m.media-amazon.com/images/I/81WTn5SEQPL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ 4.0 out of 5 stars Other wise prompt delivery and quality of good looks OK but have not tested on Windows *by A***R on Reviewed in India on 1 May 2017* They provide a CD and claim that it works with Linux but it does not nor are any coherent manual provided on the CD or elsewhere. Other wise prompt delivery and quality of good looks OK but have not tested on Windows. ### ⭐⭐⭐⭐ 4.0 out of 5 stars good *by A***L on Reviewed in India on 4 October 2020* good ### ⭐⭐⭐ 3.0 out of 5 stars Bad Packagin. Good Product. *by H***L on Reviewed in India on 29 June 2015* The item was very badly packaged. As a result, the pins as well as the antenna were bent, thankfully nothing crucial was damaged.The product works, but had to do a lot of work straightening the pins and the antenna. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/64860279-elementz-engineers-guild-pvt-ltd-sim900a-gsm-modem-sim900a-gsm](https://www.desertcart.is/products/64860279-elementz-engineers-guild-pvt-ltd-sim900a-gsm-modem-sim900a-gsm) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-04-23*