Active filters
Simple device
DIN rail mounting
Common features
GSM Modem
GPRS
Wireless communication
GSM Modem
Serial ports
RS-232
Converter type
Simple device
Module type
Industrial modem
Mount type
DIN rail mounting
Differences
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Serial ports
I/O
GPS
RS-485
RS-232 x2
Analog in
Digital in
Digital out
GPS
GT-530
 
 
 
GT-531
 
 
 
 
GT-534
 
 
GT-540
 
GT-540P
 
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