Pedaltrain Space Saving Tuner
Pedaltrain SST Chromatic Tuner is Pedaltrain's unique take on the essential tuner pedal. SST's super compact design slides between pedals (in many cases under neighboring 1/4" jacks), saving space for more pedals on your Pedaltrain.
https://pedaltrain.com/products/sst-space-saving-tuner
This Pedal is currently available.
$59