Ideal for all your sonometer experiments, the Chromatic Tuner gives you better accuracy than either your oscilloscope or your tuning forks. Choose manual or automatic mode. In manual mode you select the pitch to be measured and the meter indicates your deviation from that note. In automatic mode, the unit identifies the exact tone being measured. With a large, easy to read LCD needle type meter, it tunes over the range from 32.70 Hz (C1) to 4186.01 Hz (C8). One-quarter inch audio jacks allow an electrical signal