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. 2018 Mar 8;18(3):820. doi: 10.3390/s18030820

Figure 9.

Figure 9

The nodes deployed on the Marina di Tirrenia beach, Pisa, Italy: (a) the sand trap and (b) the anemometer-anemoscope structure. The upper black box fixed in the middle of the anemometer-anemoscope structure houses the Coordinator. In the background it is possible to notice the 10 W solar cell powering the two nodes.