RF-BMPA-2541B1 is a BLE4.2 module aimed at the Internet of Things markets with the requirements of the long range and the bigger power features. The module with a max. TX power of 19 dBm enables your application with a wider range coverage and an option of the antenna output way.
As one of the most popular modules, the RF-BM-S02 CC2540 Bluetooth LE4.2 module is designed for battery-powered based applications. The classic package size of RF-star enables this serial interface module to have a bigger market since 2010. RF-BM-S02 will be your good choice for design.