[Frequency]：410~441MHz

[Power]：20dBm

[Distance]：3km

[Interface]：RS232/RS485

[Weight]：127±5g

[Introduction]：E32-DTU (433L20) is a wireless data transceiver of 433M with standard RS232/RS485 connectors. They are half-duplex. TX & RX modems with LoRa technology and transparent transmission mode. Voltage supply ranges from 8V to 28V, Working frequency