The Tune Lock T1 by AKAI is auto ranging, so there is no need for you to select the note that you want to tune. You can automatically/manually customise the base pitch (between 437Hz and 446Hz in manual calibration). With the true/clean bypass mode, there is no coloration of the sound from the output. Powered by either 9V battery or DC in, and away you go.
Second-hand, in fair condition, some cosmetic wear. Power and box not included.
