Agree with The Stranger Smoothly bluetooth rs232 ancestor Plumber take down
LM048 Bluetooth RS232 Mini Adapter by LM Technologies
Amazon.com: CP26 RS232 to Bluetooth Serial Adapter Industrial Wireless Bluetooth Communication Module to RS232 Converter, Change 232 Wired Device to Wireless (for PC) : Electronics
BT578 Serial Bluetooth Adapter
Mettler Toledo® 30086495 Paired Bluetooth RS232 serial adapter ADP-BT- - Lab Pro Inc
Wireless Serial Bluetooth adapter with RS232 interface
Wireless Bluetooth adapter to serial RS232 DTE DCE DB9 v5 BLE compatible with Beacon reader - Cablematic
LM068-1100 Bluetooth® 5.0 Dual Mode RS232 Serial Adapter (AO)
custom 1Pcs BT5701 Serial Bluetooth Adapter Module Total Station Elec – Lonten Technology
Bluetooth RS232 BLE5.0 Serial Adapter 150M Lithium Battery for Long Range Wireless Data Transfer – Oz Robotics
Bt578 Rs232 Bluetooth-compatible Serial Adapter Wireless Male And Female Head Bluetooth-compatible Module Master-slave Universal - Integrated Circuits - AliExpress
PARANI-SD1000 Sena Bluetooth to RS232 Converter | Antaira
Amazon.com: DSD TECH SH-B23A Bluetooth 2.0 to RS232 Serial Adapter with DB9 Converter : Electronics
Bluetooth Serial Adapter RS232
LM058-3050 Bluetooth RS232 Adapter with SMA Antenna
Bluetooth RS232 Adapter, Class 1 | TOP-electronics
Amazon.com: SystemBase - RS232 to Bluetooth Adapter, Class 1, 100m, Serial to Bluetooth, 2pcs/Pack (WCS-232 v6.0) : Electronics
RS-232 To Bluetooth Converter / Adapter Pair WCS-232 – Envistia Mall
Bluetooth 3.0 RS232 Serial Adapter with Lithium Battery 10M Class2 for Wireless Data Communication – Oz Robotics
Bluetooth Smart® Serial RS232 Adapter - Low Energy 4.1 BLE
Bt578 Wireless Rs232 Bluetooth Serial Adapter | Bt Rs232 - Pc Hardware Cables & Adapters - Aliexpress
IOGEAR - GBC232A - Bluetooth Serial Transmitter
RS232 Bluetooth BLE V5.0 adapter, Support Android, iOS, Internal antenna | Taiwantrade
Wireless bluetooth adapter - WCS-232 V6.0 - SystemBase Co., Ltd.
Serial Bluetooth RS232 adapter
Long Range 100m Bluetooth 3.0 RS232 Serial Male Adapter with Bluetooth Class 1 External Antenna DB9 Pin for Data Transfer Serial Port - Newegg.com