Round tuning fork. A=440Hz
K&M tuning fork A=440Hz, model 168/2. Rectangular steel
Round tuning fork. A=442Hz
Chromatic tuner from Korg. Suitable for all instruments.
KORGs CA-2 tuner offers the most basic functions of a tuner. It detects the tone sounding or it plays a reference tone. The tuner is simple to use and detects tones in the range of A0 to C8, which makes it siutable for most musical instruments. If You like, You can change the calibration range from (A4=) 410Hz to 480Hz.
Tuner and metronome - two in one!
Chromatic Seiko tuner with analog needle that indicates intonation and calibration from A=410Hz to A=450Hz
Professional KORG tuner, model OT-120