[IC]：SI4438

[Frequency]：425~525MHz

[Power]：20dBm

[Distance]：1.8km

[Interface]：SPI

[Weight]：0.9±0.1g

[Introduction]：E10-433MS is based on original imported RF SI4438 form Silicon Labs in USA. Module features stable performance, long transmitting distance and strong penetration and diffraction ability.