[Frequency]：410~441MHz

[Power]：20dBm

[Distance]：3.0km

[Interface]：RS232/RS485

[Weight]：130±5g

[Introduction]：E90-DTU is a wireless data transceiver with the function of digital data processing,digital modulation and demodulation,FEC,balanced soft decision,etc.It provides transparent RS232/RS485 interface,different with the analog FM transceiver plus MODEM analog digital transceiver.