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  SIM900A GSM/GPRS USB Modem   Product ID: 1265 Sim900a GSM/GPRS USB Modem Featuring an industry-standard interface The SIM900A delivers GSM/GPRS 900/1800MHz performance for SMS, Data, and Fax in a small form factor and with low power consumption, With Aluminum enclosure to minimize noise. General features: Dual-Band 900/ 1800 MHz GPRS multi-slot class 10/8 GPRS mobile station class B Compliant to GSM phase 2/2+ Class 4 (2 W @900 MHz) Class 1 (1 W @ 1800MHz) SAIC (Single Antenna Interference Cancellation) support Control via AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT Commands) SIM application toolkit Internal Supply voltage range: 3.2 ... 4.8V External Supply voltage range: 9 ... 12V DC Low power consumption: 1.0mA (sleep mode&BS-PA- MFRMS=9) Operation temperature: -40C to +85C  

We Offer Wireless Gprs Modem. 1.name:rj-45 Gprs Modem 2.model:ht0rj45 3.interface: Rj45 (ethernet) 4.module:base On Wavecom Q2403aq2406bm1206b Module 5.band:dual-band (9001800 Mhz) 6.function:sms.fax.data.voice(insert Phone) product Description: industrial Design aluminum Casing wireless Access to Internet based On Wavecom Q2403aq2406bm1206b Module dual-band 9001800mhz 3v Sim Card Slot rj45 (ethernet) Interface functions basic Functions ease to Use, Reliable and Flexible support Dual Band Gsmgprs complied with Etsi Gsm Phase 2+ Standard support A51&a55 Encrypted Arithmetic enhanced Functions gprs Link Detection and Redial (work with Microsoft Dialup Software) support Dialup Control

The GSM/GPRS Modem USB uses SIM800 based Quad band 850/900/1800/1900MHz GSM / GPRS module. It can be connected to PC or laptop via  USB directly or to a microcontroller UART using TTL levels. The modem consists of all the external circuit required to start experimenting with the SIM900A module like the power regulation, external antenna, SIM Holder, etc. Modem is built with Quad Band GSM/GPRS based SIM800 module from SIMCOM. It works on frequencies 850/900/1800/1900MHz. SIM900A can search these 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. Best suited for GSM based Microcontroller Projects (better than SIM300,900a and other GSM Modems) **** Can be Use for Bulk SMS sending using Compatible software. Features: Uses the extremely popular SIM800 GSM module. Accepts commands through On board USB serial. Also can accept commands from microcontroller UART. Provides serial TTL interface for easy and direct interface to microcontrollers. Works on 9V-18V 1 A SMPS supply. Speaker and Microphone pins onboard for voice Communication. On board SMA connector with GSM antenna. On board Power, Network, Ring and status LED’s for indication. Can do basic functions which can be done via normal phone like calling, send sms, access data through GPRS etc. Plug and play device. Can accept commands through Hyper Terminal. USB communication- Better and Faster than other Cheap USB Drivers. Supports Windows 8.1 / 8 / 7 / Vista / Server 2003 / XP / 2000 / 98SE / MaC OS X / Mac OS 9 ,Linux 3.x.x / 2.x.x. Small size. NOTE : The modem consumes current of nearly 1A during transmission; please make sure that your power supply can handle such currents. Modems are pretested before shipping. We recommend to use a 12V DC 2 Amps power supply & Use USB Cable to Connect GSM MODEM to PC or Laptop. Please be very gentle with the SIM card tray while inserting or removing the SIM card. Also don't tighten the screws of the antenna too much, just make sure it is connected properly without exerting too much force to tighen the antenna.

we offer gsm utility modem. gsm utility modem 81gr visiontek gsm modem - 81gr is a wireless cellular connection for 2-way data communication with a wide variety of remote equipment and utility applications. it is mostly used with energy meters and amr applications. this modem provides a transperant gsm pipe for data transfer. its specially designed power supply meets all the requirements of type tests and certifications as required by the utilities. standard power source is of ac 90-370 volts with customized surge protection option

Low speed Communication System (WGT Modem). This is a duplex communication sub system of wire guided torpedo designed and manufactured for under water application. This is to transceive the data between wire guided torpedoes and ship or submarine. (Built to specs)