Trac20121 Indoor Industrial LoRaWAN Gateway. Adopting SX1302 LoRa chip and high-performance quad-core CPU, Trac20121 supports connection with more than 2000 nodes. Trac20121 has line of sight up to 15 km and can cover about 2 km in urbanized environment, which is ideally suited to smart office, smart building and many other indoor application.