The popularity of the ISD Tuner is so enormous that everyone wants one in their guitar.  Unfortunately, the ISD Tuner® is only available in Schenk Guitars and is installed during construction.

We answered the dilema by developing the Holy Tuner® which is an after market on-board tuner that can be easily installed into any existing acoustic guitar, banjo, ukelele or mandolin.  The unique design only allows the player to see the indicator lights through the soundhole.  It is completely concealed and Out of Sight!®  Very cool and convenient!

 Check out more at holytuner.com!