gsm gprs modem serial port sim card receiver sms advertising

gsm gprs modem serial port sim card receiver sms advertising 

Why Choose Us? 

• 1. We can offer secondary development controls, SDK DLL,customize AT commands for own modules.
• 2. We integrate multi chipsets inside serial  port data cable, instead of traditional PCI interface card,more stable and convenient,anti signal interference,electromagnetic shielding.
• 3. Bulk SMS,multi recharge and voice broadcasting three in one module available.
• 4. Own developed module,own developed software,own manufacture help us offer competitive prive,professional service,fast response and stable performance to clients.