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Default Buzzer replacement

I have a vintage Micronta (Radio Shack) analog multimeter. model 22-214.
Its a great meter. And I usually prefer analog meters for most stuff.
(old habits are hard to break).

Anyhow, the meter works fine except the continuity selection. There is a
buzzer inside thats supposed to beep. It does, but it's very quiet. I
can barely hear it. If I apply some pressure to it, with my finger or a
pencil eraser, it gets louder but wont stay that way. So I know it's the
buzzer itself thats bad, not the circuit.

Since I can no longer get replacement parts from Radio Shack, I have to
get a generic replacment. All my years of electronics, but I have never
replaced or used a buzzer for anything.

How do I select the right type? There is 2 to 2.5 volts DC going to the
buzzer when it's active. So, I need something for that voltage. It's NOT
mounted on the printed circuit board, so thats a good thing. There is
plenty room in the case to mount anything. Glue it, or screw it on. So,
how do I get the right buzzer? Or is it just based on the voltage? I
really dont know much about them.....