[Chipset]：PAN3120

[Operating Frequency]： 410–510 MHz

[Transmit Power]：30 dBm

[Communication Range]： 8 km

[Size]：38.5*24mm

[Weight]： 4.9 ± 0.1 g

[Introduction]：E291 series is a pure hardware module based on the PAN3120 chip from Pantech Microelectronics. It supports a maximum transmit power of 30dBm, operates in the 410~510MHz frequency band, and features small size, low power consumption, and long communication range, making it suitable for smart home, wireless meter reading, and medium-to-long-range wireless communication applications. Because this module is a pure RF transceiver module, it requires an MCU driver or a dedicated SPI debugging too