Acoustic sensors testing-Acoustics Forum-Acoustic Fields Forum

Hi all,
I am new to acoustics and I have a project I need to start.
I have a PCB mounted microphone covered by plastic cover and I need to find a way to test a batch of these sensors efficiently. I need to make sure they are within acceptable deviation range of +/- 3dB and that the plastic is tight enough to prevent external noise.

Can you please help me? even with a direction for reading material in the subject.
Thank you!!