https://www.cdebyte.com/products/E95-DTU(433L20-485)

EBYTE RS485 LoRa Radio Station Rf Modbus 3000m Long Distance Wireless Transceiver 20dBm 433M LoRa [Frequency]:410~441MHz [Power]:30dBm [Distance]:8km [Size]:92*67*30mm [Interface]:RS485 [Weight]:95±5g [Introduction]:E95-DTU(433L20-485) is a wireless data transmission DTU that uses military-grade LoRa modulation technology. It has a variety of transmission methods. It works at (410/441M) frequency band (default 433MHz). The DTU provides a transparent RS485 interface, plastic shell. rail type installation structure, support 8~28V voltage input