E90-DTU(2G4L27) RS232/485 lora wirelss modem military-grade LoRa modulation technology

[Introduction]：E90-DTU (2G4L27) is a data transceiver with military-grade LoRa modulation technology. With multiple transmission modes, it works in the frequency band (default 2424MHz). The transceiver provides transparent RS232/RS485 interface and supports 8～28V voltage input.