Long Range Bluetooth Serial Adaptor with inbuilt antenna and special firmware to handle DTR/DSR signal handling over bluetooth. LM048SPA is the world\'s first Bluetooth Serial Printer Adaptor for RS232 cable replacement between devices (usually a printer and POS terminal/PC) which use DTR/DSR handshaking. This adaptor comes with a unique patented firmware which can transmit the DTR/DSR signal over a bluetooth link. This means that the printers that use DSR line for error reporting can use this adaptor and still report errors like paper out power failure etc over a bluetooth link. LM Technologies Ltd provides a PC application called LM149 Configuration Software to configure these adaptors. This device is interoperable with any Bluetooth device using Serial Port Profile which includes our own Bluetooth USB adaptors. Applications: Printers • POS/EPOS market • Serial Communications • Medical Devices • Domestic & Industrial Applications • Vending • Remote Monitoring & Control.