[IC]：LLCC68

[Frequency]：410.125~493.125MHz

[Power]：22dBm

[Distance]：5km

[Size]：21*36mm

[Introduction]：E220-400T22D adopts a new generation of LoRa spread spectrum technology and a wireless serial port module (UART) designed based on the LLCC68 chip scheme. It has a variety of transmission methods, works in the(410.125～493.125MHz) frequency band (default 433.125MHz), TTL level output, compatible with 3.3V and 5V IO port voltage