E34-DTU(2G4H20) nRF24L01P high speed wireless transmitter receiver module iot wireless networking equipment 2.4ghz industrial dtu RS485 RS232 [Frequency]:2.4~2.518GHz [Power]:20dBm [Distance]:2.5km [Interface]:RS232/RS485 [Weight]:127±5g [Introduction]:E34-DTU-2G4H20 with RS232/RS485 interface, 8V~28V, operating at 2.4~2.518GHz...