Abstract: A data communication system includes a plurality of nodes arranged in layers. The system may include at least one sensor node configured to sense a condition and transmit the sensed condition within a first data signal in a wireless short range mode. The system may include a second-layer node configured to transmit a sensed condition within a data signal in a wireless low-power long range communication mode. The system include a first-layer node configured to receive the data signals having the sensed condition, and retransmit the sensed condition in the wireless low-power long range communication mode. The system may further include a networked gateway configured to receive the sensed condition and transmit the sensed condition according to internet protocol.