E90-DTU(400SL22)E New generation LoRa wireless 915M module RS485 automatic polling long-distance sending and receiving Modbus communication gateway [Interface type]:Ethernet [Working frequency]:400M [Transmit power]:22dBm [Communication distance]:5km [Product size]:84*82*25mm [Product weight]:130±5g [Introduction]:E90-DTU(400SL22)E...