👍No hidden costs and subscription fee: No contract with security ... GSM dual network(you can use GSM if there is no WIFI, The WIFI only can work with 2.4G, not work with 5G), Different alarm ...

👍No hidden costs and subscription fee: No contract with security ... GSM dual network(you can use GSM if there is no WIFI, The WIFI only can work with 2.4G, not work with 5G), Different alarm ...

The GS3125 simulates the PSTN line and decodes Contact ID format, so it is virtually “invisible” to the control panel it is connected to. The GS-3125 is the best solution for reliable GSM alarm ...

The GS3105 is a GSM/GPRS interface and a standalone device capable of generating voice dialer messages and SMS event notifications. Its onboard outputs can be triggered remotely via telephone to ...