Product Name：Holyiot-18039-nRF52840 Module

Model: Holyiot-18039
Chip: Nordic nRF52840
Size: 22.3 * 15.5 * 1.6mm
Antenna: PCB / IPX4 Antenna
Bluetooth Version: 5.3
Communication Distance: PCB Antenna：0 ～ 150m / IPX4 Antenna: 0 ～ 300m
TX Power：-20dBm ～+8dBm
Transmission speed: 2Mbps / 1Mbps / 500kbps / 125kbps 802.15.4: 250kbps
Processor: 64MHz 32-bit Arm Cortex-M4 with FPU
Storage size: 1MB Flash + 512KB RAM / 256KB Flash + 64KB RAM
Communication Protocol: Bluetooth / Thread / Matter / Zigbee / Bluetooth Mesh / ANT / 802.15.4 / 2.4GHz proprietary