B&K sound level meter and artificial ear

Brüel & Kjaer sound level meter 2235

S/N: 1853691. Includes preamp ZC0020

NB: Take note of Frequency and Time Weighting settings when using.

Brüel & Kjaer Artificial Ear 4152

S/N: 1832705

Use coupled to sound level meter to measure sound level in soundtubes. Not suited for measuring levels in free field (i.e from speakers).