Available as an assembled Module and as a DIY project.
This Module is currently available.
Tidbit Audio Voltage Indicating Multiple
The Voltage Indicating Multiple is a high performance 2-channel buffered multiple with a 12-segment LED indicator for each channel that attractively shows the approximate voltage at the input and output of each channel. This custom designed, low current draw LED indicator is entirely discrete! The range is adjustable via the two rear trimmers to show a wide range of signals. Common ranges include +/-5V, +/-8V (default “factory” setting) and +/-10V.
https://reverb.com/item/82168315-voltage-indicating-multiple-eurorack-modular-synth-4hp-3u
