[IC]：A7139

[Frequency]：425~470MHz

[Power]：20dBm

[Distance]：2km

[Size]：20*14mm

[Feature]：Super cost-effective, low power consumption

[Product weight]：2.3±0.5g

[Introduction]：E41-400M20S is an ultra-high cost-effective wireless data transmission module launched by Ebyte. It is based onAMICCOM's A7139 radio frequency chip, and it has the characteristics of small size and low power consumption.