USBy is an innovative patented device to notify you when the electricity fails and when it is restored, also reporting the total black-out time.
The alerts are sent from our Cloud Server free of charge via email directly to your smartphone
You DO NOT need GSM devices, SIM cards or UPS
An Internet line is sufficient
In addition, USBy also allows you to remotely monitor the ambient temperature via measurements made every 30 minutes by a high-precision sensor
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