For those looking for a well-made, compact handheld tuner with an analog needle gauge, Boss’ TU-12EX is a solid, if rather pricey, choice.
Made by Boss
The TU-30 is Boss’ compact successor to the popular (and discontinued) TU-80, offering solid specs and numerous features including a built-in mic, metronome and beeping “Accu-Pitch” function. It lacks, however, an output jack.
Made by Korg
The TM-TR50 is a decent tuner, but is primarily aimed at woodwind, brass and string players looking to improve the quality of their playing.