| Module | Interface | IC | Frequency（Mhz） | Power（dbm） | Distance（km） | Air speed（Kbps） | Package | Size（mm） | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E28-2G4M20SX | SPI | SX1281 | 2.4G | 20 | 6 | 0.476k～2M | Patch | 20*15 | LoRa spread spectrum, FLRC, compatible with BLE protocol | ||
| E28-2G4M12SX | SPI | SX1281 | 2.4G | 12~14 | 3 | 0.595~2 | patch | 17.8*15 | LoRa spread spectrum, FLRC, ranging | ||
| E28-2G4M27SX | SPI | SX1281 | 2.4G | 27 | 8 | 0.595~2 | SMD | 15 * 20 | Low power mode current consumption | ||
| E28-2G4T12S | UART | SX1281 | 2.4G | 12.5 | 3 | 1k ~ 2M | SMD | 17.5* 28.7 | LoRa spread spectrum |