Overview:100% brand new and high quality.The GPRS Shield is based on SIM900 module from SIMCOM. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard.Features:

• Quad-Band 850/900/1800/1900 MHz - would work on GSM networks in all countries across the world.
• 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 - Standard Commands: GSM 07.07 & 07.05 | Enhanced Commands: SIMCOM AT Commands.
• Short Message Service - so that you can send small amounts of data over the network (ASCII or raw hexadecimal).
• Embedded TCP/UDP stack - allows you to upload data to a web server.
• RTC supported.
• Selectable serial port.
• Low power consumption - 1.5mA(sleep mode)
• Industrial Temperature Range - -40°C to +85 List:
  • 1x SIM900 GPRS/GSM Board Quad-Band Module Kit
  
  
  
  
  
  1. Item will be shipped within 1-2 working days after full payment is cleared. Tracking number will be sent to all customers upon package shipment.
  2. Delivery time is different in accordance to shipping address and shipping methods.
     -Economy shipping from China: about 20-30 business days.
     -ePacket delivery (EUB) from China to US: about 10-15 business days.
     -Expedited shipping from China takes about 3-5 business days via DHL/UPS and 9-15 business days via EMS.
     -Standard shipping (Royal Mail Tracked) from UK warehouse to local customers: about 3-5 business days.
     -Standard shipping from US warehouse: about 3-7 business days.
     -Expedited shipping from US warehouse: about 3-5 business days.
     
  3. Delivery time depends on destination logistics mode and other factors. If you have not received your shipment within 30 days from payment, please feel free to contact us. We will track the shipment and get back to you as soon as possible with a reply.
  
  
  
  1. We accept payment via PAYPAL ONLY. We only ship to confirmed PAYPAL addresses. Please make sure payment address in PayPal is correct.
  2. All major credit cards are accepted through our secure payment processor PayPal.
  3. Payment must be received within 7 business days of sale closing.
  
  
  
  1. 60 days money back return policy. If you are not satisfied when you receive your item, please return it within 60 days for a replacement or money back. Please contact us for return address before you send it back.
  2. If item defective, In 3 months we will send you a replacement without extra charge, or offer refund upon faulty received.After 3 months you are still welcomed to send it back to us for exchange. Buyer may responsible for all return shipping costs.
  3. In case you receive wrong products due to shipping error, please contact us for exchange or refund. If it\'s damaged, please refuse to accept and contact us as soon as email us before leaving any negative response or open any dispute on PayPal.We care about our valued customers, and will always try to help you. So if you have any problems, please e-mail us immediately. We try our best to reply to your emails as soon as possible. If you do not receive any reply from us, please check your email ensuring your mailbox has not reached full size. You can contact us by messages are strongly recommended.

     On Oct-26-17 at 08:03:28 PDT, seller added the following information: