The best electronic chromatic tuner is the Korg OT-120 Wide 8 Octave Chromatic Orchestral Tuner. The Korg OT-120 uses a physical needle for precise, responsive feedback. It can be adjusted to pick up the range of any musical instrument. It's the most versatile handheld tuner.
Chromatic tuners are electronic hardware or software used to detect and display the pitch of notes played on musical instruments. Chromatic tuners detect all twelve notes of the chromatic scale (i.e., C, C#, D, D#, etc.) Guitar tuners are specialized for the notes and tuning schemes important to guitars; these are not full chromatic tuners though the underlying technology is the same. Chromatic tuners can be standalone electronic devices or software programs for computer or smartphone. Whatever your need, Chromatic Tuner Guide is here to teach you what is available what features are important.
Electronic chromatic tuning devices display pitches in several ways. These display types are used throughout the many models of tuners. We will define them first before explaining the other features.
Needle tuners use a needle, either LCD or an actual analog needle, or a similarly-functioning row of lights. Lights may be used to give additional feedback, for example a single green light glows above the needle when pitch is matched. The displays indicate the sharpness or flatness of the note. If the needle or lights position themselves to the left of center, the note is flat; to the right, sharp; middle, in tune. The most economical tuners use the LCD needle or its variants. Tuners with actual analog needles are the most accurate visually among the needle-based chromatic tuners. An advantage of needles--especially actual analog needles--over strobes is the ability to read directly how many "cents" off a pitch is (cent is the unit used in pitch tuning). LCD needles, however, may not have the resolution to show fine differences.