GSM SMS Alarm - Key points
Features
Basic
Pro
Pro-X
Pro-SX
Pro-ST
GSMS-
THR-X
GSMS-
THR-SX
GSMS-
THR-ST
Alarm Input
8
8
8
8
8
8
8
8
Relay Output
1
3
3
3
3
3
3
3
Alarm Phone Number
8
8
8
8
8
8
8
8
Centre Number
2
2
2
2
2
2
2
2
Low Voltage Alert
SMS Alarm
SMS Alarm
SMS Alarm
SMS Alarm
SMS Alarm
SMS Alarm
SMS Alarm
SMS Alarm
Program by SMS
Program by PC Software
Analog Channel
-
-
2
0
0
2
0
0
AD Hi / Lo Alert
-
-
SMS Alarm
-
-
SMS Alarm
-
-
External Temperature Sensor
-
-
-
1
2
-
1
2
External Humidity Sensor - -  -  1 -  - 1 - 
Temperature Humidity Hi / Lo Alert - - -
SMS Alarm
SMS Alarm
-
SMS Alarm
SMS Alarm
GSM Band (MHz)
900/1800
850/1900
900/1800
850/1900
900/1800
850/1900
900/1800
850/1900
900/1800
850/1900
900/1800
850/1900
900/1800
850/1900
900/1800
850/1900
Internal AC/DC Power Adaptor - - - - -
AC Loss Alert - - - - -
SMS Alarm
SMS Alarm
SMS Alarm
Internal Rechargeable Battery - - - - -
 
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