Carl Martin Tuner Guitar Pedal Tuner<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Switch-able between standard readout and strobe </span></li><li><span class="a-list-item"> Tuner can be calibrated from 437 through 443 </span></li><li><span class="a-list-item"> True Bypass on/off for a clean signal path </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/518%2B7Q9Z5DL.jpg" noproxy>