The MS53SF1 is a BLE 5.2 LNA module based on the highly flexible, ultra-low power. Its powerful 32-bit ARM Cortex-M0+ CPU, 256 KB Flash, 64 KB RAM and integrated 2.4 GH transceiver provide the perfect solution for Bluetooth connectivity. The hardware supports master-slave synchronous connection, supports multi-master and multi-slave operation mode, can be connected by the host (collector, handheld device) at the same time, and establish concurrent data connection with multiple slaves (external load switch, various external sensors).The longest transmission distance under 125kbps rate can reach 500m.