Feautures

Support 850/900/1800/1900 MHz tri-band frequency
Support SMS DBS software (http://m2m.icpdas.com/SMS_DBS.html)
Identify ASCII or Unicode SMS Automatically
Support max. 140 ASCII Characters
Support max. 70 Unicode Characters
Built-in ASCII Commands and SMS tunnel Communication Modes
Max. 10 Default Phone Numbers
Built-in Watch-dog Function
Support SMS setting and control
6 DI, 2 DO, 1 AI,2 RS232 port
DO control by dual-tone multi-frequency
Digital input support NC(normal close)/NO(normal open)/Counter modes
Periodic SMS report
Voice Alarm and SMS triggered by DI trigger or exceed AI/Counter preset limits
Support simple command to send SMS via RS232
Support micro SD card. (Max 2G bytes)
Support data log
Support DC +10 VDC ~ +30 VDC Power Input
Supports 3.7 V Li-ion Battery Backup
DIN Rail design