Adesys sold her 15.000 st Severa SMS-alarmmodem. Severa SMS-alarmmodems are delivered since 2002 and have become a well known solution for sms alarm and modem communication.
With the relay outputs you can do remote switching with your cell phone.
Unique is the build in emergency supply which makes it possible to receive an SMS in case of power failure.
As it is small and suitable for DIN-rail mounting you can easily fit it into switching cabinets.