[IC]：SX1281
[Frequency]：2.4~2.5GHz
[Power]：27dBm
[Distance]：7km
[Size]：40.5*25mm
[Weight]：4.8±0.1g
[Introduction]：E28-2G4T27SX is an based on SEMTECH SX1281, it adopts transparent transmission and works at 2.4GHz band. It adopts LoRa, FLRC and GFSK modulations. It features SMD packing with both IPX and PCB antenna interfaces, compatible with 3.3V and 5V IO port voltage.
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E28-2G4M27S[IC]：SX1280
[Frequency]：2.4~2.5GHz
[Power]：27dBm
[Distance]：8.0km
[Interface]：SPI
[Weight]：1.7±0.1g
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E28-2G4M20S[IC]：SX1280
[Frequency]：2.4~2.5GHz
[Power]：20dBm
[Distance]：6.0km
[Interface]：SPI
[Weight]：1.9±0.1g
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E28-2G4M12S[IC]：SX1280
[Frequency]：2.4~2.5GHz
[Power]：12.5dBm
[Distance]：3.0km
[Interface]：SPI
[Weight]：1.6±0.1g
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E28-2G4T27SX[IC]：SX1281
[Frequency]：2.4~2.5GHz
[Power]：27dBm
[Distance]：7km
[Size]：40.5*25mm
[Weight]：4.8±0.1g