This Bluetooth module is good to use when connection thru the RS232 port on a data collector is failing. It happens on certain models of data collectors, they make the RS232 ports with very stringent data voltage parameters and they bump out data communication it feels does not fit, so if the voltage in the battery drops it could cut in and out. This solves that issue 100% – With this pre-configured bluetooth module you just slip it onto the bl200 or bl230 serial Rs232 cable and look for it in the data collectors blue tooth devices. Its ready to go out of the box. Its a simple way to bridge around a picky serial connector.