Title：SK-136 GPRS Dialer
Type：SK-136
Feature：◆ strong stability: the use of industrial grade module, to ensure the long-term stable operation of products, provide pe...

Title：SK-811 Ethernet Alarm Upgrade Module
Type：SK-811
Feature：◆ Equipment upgrade: Upgrade the telephone line alarm function to the network alarm function, increase the data transfer...

Title：SK-138GSM Wireless Dialer
Type：SK-138GSM
Feature：◆ Can match any brand of user terminal equipment such as alarm panel , telephone , SPC exchanges , and so on . Upgrade t...

Title：SK-812 Ethernet Alarm Upgrade Module
Type：SK-812
Feature：☆ Equipment upgrade : the telephone line alarm function, alarm equipment upgrades for the GPRS network alarm, increasing...