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Jinou Bluetooth RS232 BLE5.0 Serial Adapter 150M Class1 for Long Range Wireless Data Transfer – Oz Robotics
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Rs232 Bluetooth Serial Adapter Board Communication Master Slave 2 Modes 5v Mini Usb Bluetooth Serial Port Profile Module - Integrated Circuits - AliExpress
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Serial Bluetooth Adapter - RS232, Long Range - 5V ONLY [5V-UCBT232EXA] - $65.00 : Serial Data Communication by U.S. Converters LLC
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The Parani-SD200L is a Class 2 type of Bluetooth Serial Adapter that supports 30 meters of wireless transmits distance by default.
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