[Frequency]：433MHz

[Power]：22dBm

[Size]：16*26mm

[Weight]：2.3±0.1g

[Introduction]：E22-400T22S is a wireless serial port module (UART) based on SEMTECH's LoRa solution radio frequency chip. It has a variety of transmission modes, working at 410.125MHz~493.125MHz, (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltages.