[Chip solution]：SX1278

[Carrier frequency]：410~441MHz

[Transmission power]：37dBm

[Communication distance]： 25km

[Product size]：50*30.9mm

[Introduction]：E32-433T37S is a new generation of on the SX1278 radio frequency chip wireless serial port module (UART),with a variety of transmission methods, working in the (410 ~ 441MHz)frequency band (default 433MHz), LoRa spread spectrum technology,TTL level Output, supports 4.5V - 15V supply voltag