[Chip Solution]：EFR32FG25

[Operating frequency]：470-510MHz

[Interface type]：UART

[Communication distance]：2.5km

[Size]：20*20mm

[Product weight]： 2 ±0.1g

[Introduction]：The E51 series IoT wireless modules are Wi-Sun modules designed for long-distance, low-power transmission. They utilize the EFR32FG25 series chip and support the Orthogonal Frequency Division Multiplexing (OFDM) modulation technology introduced in Wi-SUN Field Area Networks (FANs), which can support thousands of nodes. They support user development and are widely applicable in the IoT industry.