Wireless Serial Bluetooth adapter with RS232 interface
BL-830 1 Port Female RS-232 Bluetooth to Serial AdapterData rate from 110 to 921,600 baudOptional Power on Pin 9Suitable for ANY device with a serial portRange, Field: 30m, Office: 10mLifetime Support, 3 Year Warranty - Brainboxes
Bluetooth Basics - SparkFun Learn
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IOGEAR - GBC232A - Bluetooth Serial Transmitter
Serial Bluetooth RS232 adapter
IOGEAR - GBC232A - Bluetooth Serial Transmitter
RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v mini usb
BC-04 RS232 Bluetooth Serial Port Module Wireless Serial Communication Adapter | eBay