A DIY tool, mainly used for reading signal resistance, especially suitable for guitar and bass pickups, which helps to detect signal interruptions, errors, or differences.

Simply connect the cable to the interface, then connect the multimeter cable, and set the multimeter to a 20k ohm reading. It should display

I need a 6.35 mm female connector and a pair of multimeter cables

I suggest running the multimeter cable through the top part of the printed component, soldering it to the interface, screwing it to the main body, and using a small amount of strong glue or other plastic glue to bond the two components together