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SMS notification of a power outage, options?
Hello!
When there is a power outage in the house, you need an SMS notification, what budget options are there for this?
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GSM sockets can do this, but they often do not have a built-in battery, which is not very good.
After sending an SMS, the socket is cut down, and if there is a battery, you can request a report.
At work, mostly in cabinets, these were installed with a battery www.signal-gsm.ru/index.php?page=gsm_sensor_sim
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