I'd like to find a home for my Zen-On Chromatina 331 tuner. It's served me very well, but unfortunately doesn't work with five-string bass. It's range is from C1 (32.7Hz) to B7 (3951.1Hz), with an accuracy of +/- one cent. Other than not handling the low B, it's a great stable analog needle tuner. $20 shipped for the Tuner, new 9V battery, manual, and original box.