E90-DTU(900SL22) Ebyte free sample tcxo 868MHz 915MHz 22dBm RS232 RS485 auto relay RSSI SX1262 LoRa Modem [Frequency]:850.125~930.125MHz [Power]:22dBm [Distance]:5km [Interface]:RS232/RS485 [Weight]:128±5g [Introduction]:E90-DTU (900SL22) is a data transceiver with military-grade LoRa...