K62-DL20 Ebyte OEM/ODM cheap 4000m RS485/LoRa Wireless Spread Spectrum Point-to-point 4-20mA analog transmission module [Number of channels]:83 [Communication method]:RS485/LoRa wireless spread spectrum (SX1262) [AI/AO input mode]:0/4~20mA [Transmit power]:160mW (22dBm) [Measured...