The Hammond CWST212 is a digital tuner designed to accurately tune and measure all types of classical, jazz, and rock instruments. It features a 21 segment LCD display and a digital metronome with multiple settings, as well as a range of standard tuning presets. It has a built-in chromatic tuner and an auto-detect mode which enables it to properly tune any instrument that is inputted. It is multi-functional, able to provide strobe and needle tuning, as well as an adjustable reference pitch. It also features A, B, and C tuning selections, as well as a transpose and octave settings. All of this makes the CWST212 an ideal tool for any musician looking to get the perfect tuning.