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E90-DTU(400SL33) is a wireless data transmission radio using military-grade LoRa modulation technology. It has a variety of transmission methods and works in the (410.125~493.125MHz) frequency band (default 433.125MHz). The radio provides transparent RS232/RS485 interface, supports 8 ~28V voltage input. LoRa direct-sequence spread spectrum technology will bring longer communication distance, and has the advantages of concentrated power density and strong anti-interference ab
             ility.
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