Example implementations include a method, apparatus, and computer-readable medium comprising receiving, by a processor of at least one sensor device, a signal from a sensor element of the at least one sensor device, wherein the sensor element is configured to sense a physical phenomenon, wherein the signal is indicative of the physical phenomenon as sensed by the sensor element; determining, by the processor of the at least one sensor device, whether a level of the signal is indicative of an alarm condition; and using a cellular radio of the at least one sensor device to send a notification directly to a cloud system in response to the level of the signal being indicative of the alarm condition.