Tuner for sub contra bass

[[CRTL+ALT+DEL]]

I have a bass being modded to play down to 13hz. Any ideas for a tuner? I doubt my iPhone tuner app will do anything but spazz out at that freq.

[ZolkoW]

13 Hz is not a voice ;-)
use harmonics to tune.. 2 octave up, and it must work fine.

[FunkMetalBass]

Any decent tuner (Peterson, Sabian, Korg) should be able to recognize the overtones well enough for tuning purposes. If not, the 7th fret harmonic (C#) should pick up with relative ease.

[gricko]

specs of turbo tuner say it's range is C0-C8 [16.35Hz to 4,186.0Hz]. if that is of any help.
13Hz is out of piano frequencies and [i guess] out of range for most mainstream tuners.
you can always use a frequency meter and use math formulas to calculate the note.

[Jean Baudin]

my sonic research turbo tuner has a tough time with open C# (17hz).... but is ok with the 12th fret harmonic. You probably be ok at the 12th at 13hz. I'm assuming this is a .245 Circle K?

[OOZMAN]

12th fret harm.

/thread plz