“…Wireless communication technologies such as WiFi, Bluetooth or Zigbee can be used and each have different properties and capabilities such as data rate, range or cost. In PA, sensors and their networks are being used in fertilisation (Cugati, Miller, & Schueller, 2003;He, Wang, He, Dong, & Wang, 2011), irrigation (Vellidis, Tucker, Perry, Kvien, & Bednarz, 2008;Yunseop, Evans, & Iversen, 2008), horticulture (L opez et al, 2011;L opez Riquelme et al, 2009), greenhouse farming (Ahonen, Virrankoski, & Elmusrati, 2008;Zhou, Yang, Guo, Zhou, & Wang, 2007) and monitoring of livestock and pastures (Andonovic et al, 2010;Ru, Huan-Sheng, & Bai, 2011).…”