产品介绍：
智能Modbus SMS/GSM警报器(不支持MicroSD卡)
Support Quad-band 850/900/1800/1900 MHz frequency
Support Modbus RTU slave protocol
Support max. 256 short messages and voice alarms
Support max. 70 Unicode Characters
Easy to setup and configure
Escalation and reminder function
Up to 256 mobile phones can be alerted for each alarm point
These phone numbers can be divided into groups
Configurable SMS messages
The content of sending SMS message can be changed by Modbus protocol
Built-in Watch-dog Function
Industrial Design with Surge Protection
1 RS-485, 2 RS-232 port
Support micro SD card. (option , max. 2G bytes)
Support DC +10 VDC ~ +30 VDC Power Input
DIN Rail design
