Brymen 867/869 adapter cable rev2.0

see the article here or the listing here

Features

• reads data from Brymen 867/869 via infrared
• sends the measurements at 115200 baud via serial port
• output data rate and format adjustable (5 readings/s, 1 reading/s, single reading); settings are stored in EEPROM and remembered on next power up
• BOOT0 pin available as a button, so you can update the FW without disassembling the case
• activity LED

Here's how the serial output looks:

If you are ordering it without the USB cable, here's how to connect it:

Note: previous revisions (1.x) can be found here