[Frequency]：410.125~493.125MHz

[Power]：22dBm

[Distance]：5km

[Size]：21*36mm

[Weight]：6.7±0.2g

[Introduction]：E22-400T22D is a wireless serial port module (UART) based on SEMTECH LoRa solution. It has a variety of transmission modes, working at 410.125MHz~493.125MHz, frequency (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage.