2 Bruel & Kjaer Type 4220 Pistonphone Sound Calibration Tools Untested Org Boxes

3M Quest Technologies The EDGE EG4 Noise Dosimeter

Ling Dynamic LDS 102 Permanent Magnet Shaker Vibration Head Bruel & Kjaer

Vintage Bruel & Kjaer Accelerometer Type 4312 in Wood Box! NICE

Bruel & Kjaer Type 3032A Input/Output Module with Type 7533 LAN Interface Module

Bruel & Kjaer B&K 4808 Vibration Exciter Shaker.

Bruel & Kjaer B&K Type1617 Bandpass filter.

Endevco 2225 Shock Accelerometer tested and validated – not B&K Bruel & Kjaer