SI 400 GSM Module
The GSM/SMS transmitter module When an alarm occurs on one of the two inputs, a SMS message is sent to the corresponding receiving group.
The first of two different text messages is sent to group 1, the second message to group 2. Each group can hold 5 phone numbers maximum.
The time delay between the messages for group 1 and 2 is set in the SI 3001 Low level control alarm.
Thus, the SMS message is only sent if the alarm remains active throughout the time set for the first and the second delay time respectively. When the alarm is reset, a new SMS is sent to the group(s) that have received an alarm message.
Related products
| SI 3001 low level alarm |

